Home / 766,893.18-1,057,621.95-480,438.30

Finding the Fourth Proportional to 766,893.18, 1,057,621.95 and 480,438.30

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Solution

The fourth proportional to 766,893.18, 1,057,621.95 and 480,438.30 is: 662,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,893.18 : 1,057,621.95 = 480,438.30 : x
  2. Step 2: Convert to fraction form
    766,893.18/1,057,621.95 = 480,438.30/x
  3. Step 3: Cross multiply
    766,893.18x = 1,057,621.95 × 480,438.30
  4. Step 4: Simplify right side
    766,893.18x = 508,122,091,700.69
  5. Step 5: Solve for x
    x = 508,122,091,700.69/766,893.18
  6. Step 6: Final answer
    x = 662,572.19

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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.