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Finding the Fourth Proportional to 577,438.30, 865,173.30 and 492,801.40

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Solution

The fourth proportional to 577,438.30, 865,173.30 and 492,801.40 is: 738,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,438.30 : 865,173.30 = 492,801.40 : x
  2. Step 2: Convert to fraction form
    577,438.30/865,173.30 = 492,801.40/x
  3. Step 3: Cross multiply
    577,438.30x = 865,173.30 × 492,801.40
  4. Step 4: Simplify right side
    577,438.30x = 426,358,613,482.62
  5. Step 5: Solve for x
    x = 426,358,613,482.62/577,438.30
  6. Step 6: Final answer
    x = 738,362.20

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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.