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Finding the Fourth Proportional to 545,802.70, 752,696.85 and 431,354.76

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Solution

The fourth proportional to 545,802.70, 752,696.85 and 431,354.76 is: 594,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,802.70 : 752,696.85 = 431,354.76 : x
  2. Step 2: Convert to fraction form
    545,802.70/752,696.85 = 431,354.76/x
  3. Step 3: Cross multiply
    545,802.70x = 752,696.85 × 431,354.76
  4. Step 4: Simplify right side
    545,802.70x = 324,679,369,084.51
  5. Step 5: Solve for x
    x = 324,679,369,084.51/545,802.70
  6. Step 6: Final answer
    x = 594,865.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.