Home / 769,030.40-1,061,157.12-429,455.36

Finding the Fourth Proportional to 769,030.40, 1,061,157.12 and 429,455.36

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Solution

The fourth proportional to 769,030.40, 1,061,157.12 and 429,455.36 is: 592,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,030.40 : 1,061,157.12 = 429,455.36 : x
  2. Step 2: Convert to fraction form
    769,030.40/1,061,157.12 = 429,455.36/x
  3. Step 3: Cross multiply
    769,030.40x = 1,061,157.12 × 429,455.36
  4. Step 4: Simplify right side
    769,030.40x = 455,719,612,986.16
  5. Step 5: Solve for x
    x = 455,719,612,986.16/769,030.40
  6. Step 6: Final answer
    x = 592,589.85

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1.5x scale

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.