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Finding the Fourth Proportional to 545,608.18, 752,678.52 and 423,916.66

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Solution

The fourth proportional to 545,608.18, 752,678.52 and 423,916.66 is: 584,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,608.18 : 752,678.52 = 423,916.66 : x
  2. Step 2: Convert to fraction form
    545,608.18/752,678.52 = 423,916.66/x
  3. Step 3: Cross multiply
    545,608.18x = 752,678.52 × 423,916.66
  4. Step 4: Simplify right side
    545,608.18x = 319,072,963,603.30
  5. Step 5: Solve for x
    x = 319,072,963,603.30/545,608.18
  6. Step 6: Final answer
    x = 584,802.38

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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.