Home / 744,864.81-1,117,408.38-345,545.95

Finding the Fourth Proportional to 744,864.81, 1,117,408.38 and 345,545.95

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Solution

The fourth proportional to 744,864.81, 1,117,408.38 and 345,545.95 is: 518,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,864.81 : 1,117,408.38 = 345,545.95 : x
  2. Step 2: Convert to fraction form
    744,864.81/1,117,408.38 = 345,545.95/x
  3. Step 3: Cross multiply
    744,864.81x = 1,117,408.38 × 345,545.95
  4. Step 4: Simplify right side
    744,864.81x = 386,115,934,618.02
  5. Step 5: Solve for x
    x = 386,115,934,618.02/744,864.81
  6. Step 6: Final answer
    x = 518,370.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.