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Finding the Fourth Proportional to 571,444.34, 788,612.37 and 316,780.34

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Solution

The fourth proportional to 571,444.34, 788,612.37 and 316,780.34 is: 437,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,444.34 : 788,612.37 = 316,780.34 : x
  2. Step 2: Convert to fraction form
    571,444.34/788,612.37 = 316,780.34/x
  3. Step 3: Cross multiply
    571,444.34x = 788,612.37 × 316,780.34
  4. Step 4: Simplify right side
    571,444.34x = 249,816,894,696.81
  5. Step 5: Solve for x
    x = 249,816,894,696.81/571,444.34
  6. Step 6: Final answer
    x = 437,167.50

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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.