Home / 913,328.60-1,260,900.15-550,843.88

Finding the Fourth Proportional to 913,328.60, 1,260,900.15 and 550,843.88

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Solution

The fourth proportional to 913,328.60, 1,260,900.15 and 550,843.88 is: 760,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,328.60 : 1,260,900.15 = 550,843.88 : x
  2. Step 2: Convert to fraction form
    913,328.60/1,260,900.15 = 550,843.88/x
  3. Step 3: Cross multiply
    913,328.60x = 1,260,900.15 × 550,843.88
  4. Step 4: Simplify right side
    913,328.60x = 694,559,130,918.58
  5. Step 5: Solve for x
    x = 694,559,130,918.58/913,328.60
  6. Step 6: Final answer
    x = 760,470.14

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1.5x scale

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.