Home / 1,225,226.28-1,690,564.50-715,830.24

Finding the Fourth Proportional to 1,225,226.28, 1,690,564.50 and 715,830.24

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Solution

The fourth proportional to 1,225,226.28, 1,690,564.50 and 715,830.24 is: 987,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,226.28 : 1,690,564.50 = 715,830.24 : x
  2. Step 2: Convert to fraction form
    1,225,226.28/1,690,564.50 = 715,830.24/x
  3. Step 3: Cross multiply
    1,225,226.28x = 1,690,564.50 × 715,830.24
  4. Step 4: Simplify right side
    1,225,226.28x = 1,210,157,191,770.48
  5. Step 5: Solve for x
    x = 1,210,157,191,770.48/1,225,226.28
  6. Step 6: Final answer
    x = 987,700.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.