Home / 804,551.90-1,207,605.45-405,643.10

Finding the Fourth Proportional to 804,551.90, 1,207,605.45 and 405,643.10

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Solution

The fourth proportional to 804,551.90, 1,207,605.45 and 405,643.10 is: 608,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,551.90 : 1,207,605.45 = 405,643.10 : x
  2. Step 2: Convert to fraction form
    804,551.90/1,207,605.45 = 405,643.10/x
  3. Step 3: Cross multiply
    804,551.90x = 1,207,605.45 × 405,643.10
  4. Step 4: Simplify right side
    804,551.90x = 489,856,818,314.90
  5. Step 5: Solve for x
    x = 489,856,818,314.90/804,551.90
  6. Step 6: Final answer
    x = 608,856.70

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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.