Home / 1,012,140.80-1,516,461.60-478,512.80

Finding the Fourth Proportional to 1,012,140.80, 1,516,461.60 and 478,512.80

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Solution

The fourth proportional to 1,012,140.80, 1,516,461.60 and 478,512.80 is: 716,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,140.80 : 1,516,461.60 = 478,512.80 : x
  2. Step 2: Convert to fraction form
    1,012,140.80/1,516,461.60 = 478,512.80/x
  3. Step 3: Cross multiply
    1,012,140.80x = 1,516,461.60 × 478,512.80
  4. Step 4: Simplify right side
    1,012,140.80x = 725,646,286,308.48
  5. Step 5: Solve for x
    x = 725,646,286,308.48/1,012,140.80
  6. Step 6: Final answer
    x = 716,942.04

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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.