Home / 814,275.19-1,123,531.49-470,105.15

Finding the Fourth Proportional to 814,275.19, 1,123,531.49 and 470,105.15

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Solution

The fourth proportional to 814,275.19, 1,123,531.49 and 470,105.15 is: 648,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,275.19 : 1,123,531.49 = 470,105.15 : x
  2. Step 2: Convert to fraction form
    814,275.19/1,123,531.49 = 470,105.15/x
  3. Step 3: Cross multiply
    814,275.19x = 1,123,531.49 × 470,105.15
  4. Step 4: Simplify right side
    814,275.19x = 528,177,937,285.65
  5. Step 5: Solve for x
    x = 528,177,937,285.65/814,275.19
  6. Step 6: Final answer
    x = 648,647.96

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Double scale
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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.