Home / 876,938.40-1,315,407.60-497,712.60

Finding the Fourth Proportional to 876,938.40, 1,315,407.60 and 497,712.60

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Solution

The fourth proportional to 876,938.40, 1,315,407.60 and 497,712.60 is: 746,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,938.40 : 1,315,407.60 = 497,712.60 : x
  2. Step 2: Convert to fraction form
    876,938.40/1,315,407.60 = 497,712.60/x
  3. Step 3: Cross multiply
    876,938.40x = 1,315,407.60 × 497,712.60
  4. Step 4: Simplify right side
    876,938.40x = 654,694,936,655.76
  5. Step 5: Solve for x
    x = 654,694,936,655.76/876,938.40
  6. Step 6: Final answer
    x = 746,568.90

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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.