Home / 712,888.53-1,069,249.59-286,407.13

Finding the Fourth Proportional to 712,888.53, 1,069,249.59 and 286,407.13

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Solution

The fourth proportional to 712,888.53, 1,069,249.59 and 286,407.13 is: 429,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,888.53 : 1,069,249.59 = 286,407.13 : x
  2. Step 2: Convert to fraction form
    712,888.53/1,069,249.59 = 286,407.13/x
  3. Step 3: Cross multiply
    712,888.53x = 1,069,249.59 × 286,407.13
  4. Step 4: Simplify right side
    712,888.53x = 306,240,703,348.15
  5. Step 5: Solve for x
    x = 306,240,703,348.15/712,888.53
  6. Step 6: Final answer
    x = 429,577.26

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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.