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Finding the Fourth Proportional to 617,631.80, 926,447.70 and 607,134.20

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Solution

The fourth proportional to 617,631.80, 926,447.70 and 607,134.20 is: 910,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,631.80 : 926,447.70 = 607,134.20 : x
  2. Step 2: Convert to fraction form
    617,631.80/926,447.70 = 607,134.20/x
  3. Step 3: Cross multiply
    617,631.80x = 926,447.70 × 607,134.20
  4. Step 4: Simplify right side
    617,631.80x = 562,478,083,181.34
  5. Step 5: Solve for x
    x = 562,478,083,181.34/617,631.80
  6. Step 6: Final answer
    x = 910,701.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.