Home / 756,505.60-1,134,681.60-257,862.40

Finding the Fourth Proportional to 756,505.60, 1,134,681.60 and 257,862.40

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Solution

The fourth proportional to 756,505.60, 1,134,681.60 and 257,862.40 is: 386,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,505.60 : 1,134,681.60 = 257,862.40 : x
  2. Step 2: Convert to fraction form
    756,505.60/1,134,681.60 = 257,862.40/x
  3. Step 3: Cross multiply
    756,505.60x = 1,134,681.60 × 257,862.40
  4. Step 4: Simplify right side
    756,505.60x = 292,591,720,611.84
  5. Step 5: Solve for x
    x = 292,591,720,611.84/756,505.60
  6. Step 6: Final answer
    x = 386,767.42

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1.5x scale

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.