Home / 712,850.60-1,069,474.08-579,400.40

Finding the Fourth Proportional to 712,850.60, 1,069,474.08 and 579,400.40

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Solution

The fourth proportional to 712,850.60, 1,069,474.08 and 579,400.40 is: 869,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,850.60 : 1,069,474.08 = 579,400.40 : x
  2. Step 2: Convert to fraction form
    712,850.60/1,069,474.08 = 579,400.40/x
  3. Step 3: Cross multiply
    712,850.60x = 1,069,474.08 × 579,400.40
  4. Step 4: Simplify right side
    712,850.60x = 619,653,709,741.63
  5. Step 5: Solve for x
    x = 619,653,709,741.63/712,850.60
  6. Step 6: Final answer
    x = 869,261.68

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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.