Home / 710,833.20-1,064,694.60-429,860.40

Finding the Fourth Proportional to 710,833.20, 1,064,694.60 and 429,860.40

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Solution

The fourth proportional to 710,833.20, 1,064,694.60 and 429,860.40 is: 643,850.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,833.20 : 1,064,694.60 = 429,860.40 : x
  2. Step 2: Convert to fraction form
    710,833.20/1,064,694.60 = 429,860.40/x
  3. Step 3: Cross multiply
    710,833.20x = 1,064,694.60 × 429,860.40
  4. Step 4: Simplify right side
    710,833.20x = 457,670,046,633.84
  5. Step 5: Solve for x
    x = 457,670,046,633.84/710,833.20
  6. Step 6: Final answer
    x = 643,850.13

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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.