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Finding the Fourth Proportional to 1,361,607.18, 1,879,001.91 and 749,747.10

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Solution

The fourth proportional to 1,361,607.18, 1,879,001.91 and 749,747.10 is: 1,034,642.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,607.18 : 1,879,001.91 = 749,747.10 : x
  2. Step 2: Convert to fraction form
    1,361,607.18/1,879,001.91 = 749,747.10/x
  3. Step 3: Cross multiply
    1,361,607.18x = 1,879,001.91 × 749,747.10
  4. Step 4: Simplify right side
    1,361,607.18x = 1,408,776,232,916.96
  5. Step 5: Solve for x
    x = 1,408,776,232,916.96/1,361,607.18
  6. Step 6: Final answer
    x = 1,034,642.19

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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.