Home / 847,305.16-1,169,279.69-465,331.91

Finding the Fourth Proportional to 847,305.16, 1,169,279.69 and 465,331.91

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Solution

The fourth proportional to 847,305.16, 1,169,279.69 and 465,331.91 is: 642,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,305.16 : 1,169,279.69 = 465,331.91 : x
  2. Step 2: Convert to fraction form
    847,305.16/1,169,279.69 = 465,331.91/x
  3. Step 3: Cross multiply
    847,305.16x = 1,169,279.69 × 465,331.91
  4. Step 4: Simplify right side
    847,305.16x = 544,103,143,298.85
  5. Step 5: Solve for x
    x = 544,103,143,298.85/847,305.16
  6. Step 6: Final answer
    x = 642,157.24

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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.