Home / 729,209.40-1,005,904.62-427,345.08

Finding the Fourth Proportional to 729,209.40, 1,005,904.62 and 427,345.08

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Solution

The fourth proportional to 729,209.40, 1,005,904.62 and 427,345.08 is: 589,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,209.40 : 1,005,904.62 = 427,345.08 : x
  2. Step 2: Convert to fraction form
    729,209.40/1,005,904.62 = 427,345.08/x
  3. Step 3: Cross multiply
    729,209.40x = 1,005,904.62 × 427,345.08
  4. Step 4: Simplify right side
    729,209.40x = 429,868,390,306.27
  5. Step 5: Solve for x
    x = 429,868,390,306.27/729,209.40
  6. Step 6: Final answer
    x = 589,499.24

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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.