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Finding the Fourth Proportional to 565,677.93, 780,650.86 and 307,572.21

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Solution

The fourth proportional to 565,677.93, 780,650.86 and 307,572.21 is: 424,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,677.93 : 780,650.86 = 307,572.21 : x
  2. Step 2: Convert to fraction form
    565,677.93/780,650.86 = 307,572.21/x
  3. Step 3: Cross multiply
    565,677.93x = 780,650.86 × 307,572.21
  4. Step 4: Simplify right side
    565,677.93x = 240,106,506,759.11
  5. Step 5: Solve for x
    x = 240,106,506,759.11/565,677.93
  6. Step 6: Final answer
    x = 424,457.97

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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.