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Finding the Fourth Proportional to 507,125.60, 760,688.40 and 307,671.20

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Solution

The fourth proportional to 507,125.60, 760,688.40 and 307,671.20 is: 461,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,125.60 : 760,688.40 = 307,671.20 : x
  2. Step 2: Convert to fraction form
    507,125.60/760,688.40 = 307,671.20/x
  3. Step 3: Cross multiply
    507,125.60x = 760,688.40 × 307,671.20
  4. Step 4: Simplify right side
    507,125.60x = 234,041,912,854.08
  5. Step 5: Solve for x
    x = 234,041,912,854.08/507,125.60
  6. Step 6: Final answer
    x = 461,506.80

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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.