Home / 820,590.47-1,132,471.91-458,085.10

Finding the Fourth Proportional to 820,590.47, 1,132,471.91 and 458,085.10

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Solution

The fourth proportional to 820,590.47, 1,132,471.91 and 458,085.10 is: 632,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,590.47 : 1,132,471.91 = 458,085.10 : x
  2. Step 2: Convert to fraction form
    820,590.47/1,132,471.91 = 458,085.10/x
  3. Step 3: Cross multiply
    820,590.47x = 1,132,471.91 × 458,085.10
  4. Step 4: Simplify right side
    820,590.47x = 518,768,508,139.54
  5. Step 5: Solve for x
    x = 518,768,508,139.54/820,590.47
  6. Step 6: Final answer
    x = 632,189.29

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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.