Home / 780,545.16-1,077,160.68-458,259.12

Finding the Fourth Proportional to 780,545.16, 1,077,160.68 and 458,259.12

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Solution

The fourth proportional to 780,545.16, 1,077,160.68 and 458,259.12 is: 632,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,545.16 : 1,077,160.68 = 458,259.12 : x
  2. Step 2: Convert to fraction form
    780,545.16/1,077,160.68 = 458,259.12/x
  3. Step 3: Cross multiply
    780,545.16x = 1,077,160.68 × 458,259.12
  4. Step 4: Simplify right side
    780,545.16x = 493,618,705,315.40
  5. Step 5: Solve for x
    x = 493,618,705,315.40/780,545.16
  6. Step 6: Final answer
    x = 632,402.49

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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.