Home / 907,746.25-1,252,640.21-499,770.62

Finding the Fourth Proportional to 907,746.25, 1,252,640.21 and 499,770.62

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Solution

The fourth proportional to 907,746.25, 1,252,640.21 and 499,770.62 is: 689,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,746.25 : 1,252,640.21 = 499,770.62 : x
  2. Step 2: Convert to fraction form
    907,746.25/1,252,640.21 = 499,770.62/x
  3. Step 3: Cross multiply
    907,746.25x = 1,252,640.21 × 499,770.62
  4. Step 4: Simplify right side
    907,746.25x = 626,032,768,125.43
  5. Step 5: Solve for x
    x = 626,032,768,125.43/907,746.25
  6. Step 6: Final answer
    x = 689,656.13

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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.