Home / 806,042.40-1,207,681.20-525,415.20

Finding the Fourth Proportional to 806,042.40, 1,207,681.20 and 525,415.20

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Solution

The fourth proportional to 806,042.40, 1,207,681.20 and 525,415.20 is: 787,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,042.40 : 1,207,681.20 = 525,415.20 : x
  2. Step 2: Convert to fraction form
    806,042.40/1,207,681.20 = 525,415.20/x
  3. Step 3: Cross multiply
    806,042.40x = 1,207,681.20 × 525,415.20
  4. Step 4: Simplify right side
    806,042.40x = 634,534,059,234.24
  5. Step 5: Solve for x
    x = 634,534,059,234.24/806,042.40
  6. Step 6: Final answer
    x = 787,221.69

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1.5x scale

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.