Home / 948,864.76-1,309,432.56-519,146.60

Finding the Fourth Proportional to 948,864.76, 1,309,432.56 and 519,146.60

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Solution

The fourth proportional to 948,864.76, 1,309,432.56 and 519,146.60 is: 716,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,864.76 : 1,309,432.56 = 519,146.60 : x
  2. Step 2: Convert to fraction form
    948,864.76/1,309,432.56 = 519,146.60/x
  3. Step 3: Cross multiply
    948,864.76x = 1,309,432.56 × 519,146.60
  4. Step 4: Simplify right side
    948,864.76x = 679,787,461,453.30
  5. Step 5: Solve for x
    x = 679,787,461,453.30/948,864.76
  6. Step 6: Final answer
    x = 716,421.87

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Double scale
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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.