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Finding the Fourth Proportional to 898,800.60, 1,348,784.10 and 519,720.60

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Solution

The fourth proportional to 898,800.60, 1,348,784.10 and 519,720.60 is: 779,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,800.60 : 1,348,784.10 = 519,720.60 : x
  2. Step 2: Convert to fraction form
    898,800.60/1,348,784.10 = 519,720.60/x
  3. Step 3: Cross multiply
    898,800.60x = 1,348,784.10 × 519,720.60
  4. Step 4: Simplify right side
    898,800.60x = 700,990,881,722.46
  5. Step 5: Solve for x
    x = 700,990,881,722.46/898,800.60
  6. Step 6: Final answer
    x = 779,918.13

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1.5x scale

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.