Home / 803,017.38-1,108,169.43-440,443.77

Finding the Fourth Proportional to 803,017.38, 1,108,169.43 and 440,443.77

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Solution

The fourth proportional to 803,017.38, 1,108,169.43 and 440,443.77 is: 607,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,017.38 : 1,108,169.43 = 440,443.77 : x
  2. Step 2: Convert to fraction form
    803,017.38/1,108,169.43 = 440,443.77/x
  3. Step 3: Cross multiply
    803,017.38x = 1,108,169.43 × 440,443.77
  4. Step 4: Simplify right side
    803,017.38x = 488,086,321,547.95
  5. Step 5: Solve for x
    x = 488,086,321,547.95/803,017.38
  6. Step 6: Final answer
    x = 607,815.39

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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.