Home / 728,465.40-1,092,698.10-657,606.60

Finding the Fourth Proportional to 728,465.40, 1,092,698.10 and 657,606.60

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Solution

The fourth proportional to 728,465.40, 1,092,698.10 and 657,606.60 is: 986,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,465.40 : 1,092,698.10 = 657,606.60 : x
  2. Step 2: Convert to fraction form
    728,465.40/1,092,698.10 = 657,606.60/x
  3. Step 3: Cross multiply
    728,465.40x = 1,092,698.10 × 657,606.60
  4. Step 4: Simplify right side
    728,465.40x = 718,565,482,367.46
  5. Step 5: Solve for x
    x = 718,565,482,367.46/728,465.40
  6. Step 6: Final answer
    x = 986,409.90

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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.