Home / 880,826.50-1,215,541.79-478,418.50

Finding the Fourth Proportional to 880,826.50, 1,215,541.79 and 478,418.50

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Solution

The fourth proportional to 880,826.50, 1,215,541.79 and 478,418.50 is: 660,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,826.50 : 1,215,541.79 = 478,418.50 : x
  2. Step 2: Convert to fraction form
    880,826.50/1,215,541.79 = 478,418.50/x
  3. Step 3: Cross multiply
    880,826.50x = 1,215,541.79 × 478,418.50
  4. Step 4: Simplify right side
    880,826.50x = 581,537,679,859.12
  5. Step 5: Solve for x
    x = 581,537,679,859.12/880,826.50
  6. Step 6: Final answer
    x = 660,218.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.