Home / 571,216.76-788,279.12-316,584.35

Finding the Fourth Proportional to 571,216.76, 788,279.12 and 316,584.35

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Solution

The fourth proportional to 571,216.76, 788,279.12 and 316,584.35 is: 436,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,216.76 : 788,279.12 = 316,584.35 : x
  2. Step 2: Convert to fraction form
    571,216.76/788,279.12 = 316,584.35/x
  3. Step 3: Cross multiply
    571,216.76x = 788,279.12 × 316,584.35
  4. Step 4: Simplify right side
    571,216.76x = 249,556,829,673.84
  5. Step 5: Solve for x
    x = 249,556,829,673.84/571,216.76
  6. Step 6: Final answer
    x = 436,886.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.