Home / 665,269.60-997,904.40-658,271.20

Finding the Fourth Proportional to 665,269.60, 997,904.40 and 658,271.20

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Solution

The fourth proportional to 665,269.60, 997,904.40 and 658,271.20 is: 987,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,269.60 : 997,904.40 = 658,271.20 : x
  2. Step 2: Convert to fraction form
    665,269.60/997,904.40 = 658,271.20/x
  3. Step 3: Cross multiply
    665,269.60x = 997,904.40 × 658,271.20
  4. Step 4: Simplify right side
    665,269.60x = 656,891,726,873.28
  5. Step 5: Solve for x
    x = 656,891,726,873.28/665,269.60
  6. Step 6: Final answer
    x = 987,406.80

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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.