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Finding the Fourth Proportional to 577,155.80, 865,733.70 and 535,165.40

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Solution

The fourth proportional to 577,155.80, 865,733.70 and 535,165.40 is: 802,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,155.80 : 865,733.70 = 535,165.40 : x
  2. Step 2: Convert to fraction form
    577,155.80/865,733.70 = 535,165.40/x
  3. Step 3: Cross multiply
    577,155.80x = 865,733.70 × 535,165.40
  4. Step 4: Simplify right side
    577,155.80x = 463,310,721,853.98
  5. Step 5: Solve for x
    x = 463,310,721,853.98/577,155.80
  6. Step 6: Final answer
    x = 802,748.10

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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.