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Finding the Fourth Proportional to 543,802.71, 750,447.35 and 302,107.89

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Solution

The fourth proportional to 543,802.71, 750,447.35 and 302,107.89 is: 416,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,802.71 : 750,447.35 = 302,107.89 : x
  2. Step 2: Convert to fraction form
    543,802.71/750,447.35 = 302,107.89/x
  3. Step 3: Cross multiply
    543,802.71x = 750,447.35 × 302,107.89
  4. Step 4: Simplify right side
    543,802.71x = 226,716,069,600.49
  5. Step 5: Solve for x
    x = 226,716,069,600.49/543,802.71
  6. Step 6: Final answer
    x = 416,908.68

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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.