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Finding the Fourth Proportional to 575,747.49, 864,369.60 and 442,721.16

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Solution

The fourth proportional to 575,747.49, 864,369.60 and 442,721.16 is: 664,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,747.49 : 864,369.60 = 442,721.16 : x
  2. Step 2: Convert to fraction form
    575,747.49/864,369.60 = 442,721.16/x
  3. Step 3: Cross multiply
    575,747.49x = 864,369.60 × 442,721.16
  4. Step 4: Simplify right side
    575,747.49x = 382,674,711,980.74
  5. Step 5: Solve for x
    x = 382,674,711,980.74/575,747.49
  6. Step 6: Final answer
    x = 664,657.20

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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.