Home / 715,498.21-1,071,475.82-525,508.05

Finding the Fourth Proportional to 715,498.21, 1,071,475.82 and 525,508.05

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Solution

The fourth proportional to 715,498.21, 1,071,475.82 and 525,508.05 is: 786,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,498.21 : 1,071,475.82 = 525,508.05 : x
  2. Step 2: Convert to fraction form
    715,498.21/1,071,475.82 = 525,508.05/x
  3. Step 3: Cross multiply
    715,498.21x = 1,071,475.82 × 525,508.05
  4. Step 4: Simplify right side
    715,498.21x = 563,069,163,432.97
  5. Step 5: Solve for x
    x = 563,069,163,432.97/715,498.21
  6. Step 6: Final answer
    x = 786,960.97

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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.