Home / 805,897.30-1,207,809.15-490,018.90

Finding the Fourth Proportional to 805,897.30, 1,207,809.15 and 490,018.90

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Solution

The fourth proportional to 805,897.30, 1,207,809.15 and 490,018.90 is: 734,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,897.30 : 1,207,809.15 = 490,018.90 : x
  2. Step 2: Convert to fraction form
    805,897.30/1,207,809.15 = 490,018.90/x
  3. Step 3: Cross multiply
    805,897.30x = 1,207,809.15 × 490,018.90
  4. Step 4: Simplify right side
    805,897.30x = 591,849,311,092.94
  5. Step 5: Solve for x
    x = 591,849,311,092.94/805,897.30
  6. Step 6: Final answer
    x = 734,397.93

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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.