Home / 750,490.20-1,035,657.28-419,348.79

Finding the Fourth Proportional to 750,490.20, 1,035,657.28 and 419,348.79

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Solution

The fourth proportional to 750,490.20, 1,035,657.28 and 419,348.79 is: 578,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,490.20 : 1,035,657.28 = 419,348.79 : x
  2. Step 2: Convert to fraction form
    750,490.20/1,035,657.28 = 419,348.79/x
  3. Step 3: Cross multiply
    750,490.20x = 1,035,657.28 × 419,348.79
  4. Step 4: Simplify right side
    750,490.20x = 434,301,623,863.16
  5. Step 5: Solve for x
    x = 434,301,623,863.16/750,490.20
  6. Step 6: Final answer
    x = 578,690.60

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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.