Home / 626,942.74-865,445.85-423,269.56

Finding the Fourth Proportional to 626,942.74, 865,445.85 and 423,269.56

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Solution

The fourth proportional to 626,942.74, 865,445.85 and 423,269.56 is: 584,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,942.74 : 865,445.85 = 423,269.56 : x
  2. Step 2: Convert to fraction form
    626,942.74/865,445.85 = 423,269.56/x
  3. Step 3: Cross multiply
    626,942.74x = 865,445.85 × 423,269.56
  4. Step 4: Simplify right side
    626,942.74x = 366,316,879,806.10
  5. Step 5: Solve for x
    x = 366,316,879,806.10/626,942.74
  6. Step 6: Final answer
    x = 584,290.81

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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.