Home / 739,408.72-1,020,431.29-417,001.18

Finding the Fourth Proportional to 739,408.72, 1,020,431.29 and 417,001.18

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Solution

The fourth proportional to 739,408.72, 1,020,431.29 and 417,001.18 is: 575,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,408.72 : 1,020,431.29 = 417,001.18 : x
  2. Step 2: Convert to fraction form
    739,408.72/1,020,431.29 = 417,001.18/x
  3. Step 3: Cross multiply
    739,408.72x = 1,020,431.29 × 417,001.18
  4. Step 4: Simplify right side
    739,408.72x = 425,521,053,424.06
  5. Step 5: Solve for x
    x = 425,521,053,424.06/739,408.72
  6. Step 6: Final answer
    x = 575,488.28

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Double scale
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Similar ratio
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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.