Home / 910,781.50-1,256,879.19-508,373.50

Finding the Fourth Proportional to 910,781.50, 1,256,879.19 and 508,373.50

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Solution

The fourth proportional to 910,781.50, 1,256,879.19 and 508,373.50 is: 701,555.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,781.50 : 1,256,879.19 = 508,373.50 : x
  2. Step 2: Convert to fraction form
    910,781.50/1,256,879.19 = 508,373.50/x
  3. Step 3: Cross multiply
    910,781.50x = 1,256,879.19 × 508,373.50
  4. Step 4: Simplify right side
    910,781.50x = 638,964,072,897.47
  5. Step 5: Solve for x
    x = 638,964,072,897.47/910,781.50
  6. Step 6: Final answer
    x = 701,555.83

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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.