Home / 819,647.20-1,229,643.60-346,088.80

Finding the Fourth Proportional to 819,647.20, 1,229,643.60 and 346,088.80

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Solution

The fourth proportional to 819,647.20, 1,229,643.60 and 346,088.80 is: 519,206.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,647.20 : 1,229,643.60 = 346,088.80 : x
  2. Step 2: Convert to fraction form
    819,647.20/1,229,643.60 = 346,088.80/x
  3. Step 3: Cross multiply
    819,647.20x = 1,229,643.60 × 346,088.80
  4. Step 4: Simplify right side
    819,647.20x = 425,565,877,951.68
  5. Step 5: Solve for x
    x = 425,565,877,951.68/819,647.20
  6. Step 6: Final answer
    x = 519,206.16

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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.