Home / 680,865.60-1,019,548.80-502,406.40

Finding the Fourth Proportional to 680,865.60, 1,019,548.80 and 502,406.40

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Solution

The fourth proportional to 680,865.60, 1,019,548.80 and 502,406.40 is: 752,318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,865.60 : 1,019,548.80 = 502,406.40 : x
  2. Step 2: Convert to fraction form
    680,865.60/1,019,548.80 = 502,406.40/x
  3. Step 3: Cross multiply
    680,865.60x = 1,019,548.80 × 502,406.40
  4. Step 4: Simplify right side
    680,865.60x = 512,227,842,232.32
  5. Step 5: Solve for x
    x = 512,227,842,232.32/680,865.60
  6. Step 6: Final answer
    x = 752,318.58

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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.