Home / 712,778.51-1,069,038.61-286,297.11

Finding the Fourth Proportional to 712,778.51, 1,069,038.61 and 286,297.11

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Solution

The fourth proportional to 712,778.51, 1,069,038.61 and 286,297.11 is: 429,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,778.51 : 1,069,038.61 = 286,297.11 : x
  2. Step 2: Convert to fraction form
    712,778.51/1,069,038.61 = 286,297.11/x
  3. Step 3: Cross multiply
    712,778.51x = 1,069,038.61 × 286,297.11
  4. Step 4: Simplify right side
    712,778.51x = 306,062,663,805.67
  5. Step 5: Solve for x
    x = 306,062,663,805.67/712,778.51
  6. Step 6: Final answer
    x = 429,393.79

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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.