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Finding the Fourth Proportional to 977,477.10, 1,466,215.65 and 472,425.90

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Solution

The fourth proportional to 977,477.10, 1,466,215.65 and 472,425.90 is: 708,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,477.10 : 1,466,215.65 = 472,425.90 : x
  2. Step 2: Convert to fraction form
    977,477.10/1,466,215.65 = 472,425.90/x
  3. Step 3: Cross multiply
    977,477.10x = 1,466,215.65 × 472,425.90
  4. Step 4: Simplify right side
    977,477.10x = 692,678,248,045.34
  5. Step 5: Solve for x
    x = 692,678,248,045.34/977,477.10
  6. Step 6: Final answer
    x = 708,638.85

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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.