Home / 985,657.60-1,478,482.08-386,195.20

Finding the Fourth Proportional to 985,657.60, 1,478,482.08 and 386,195.20

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Solution

The fourth proportional to 985,657.60, 1,478,482.08 and 386,195.20 is: 579,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,657.60 : 1,478,482.08 = 386,195.20 : x
  2. Step 2: Convert to fraction form
    985,657.60/1,478,482.08 = 386,195.20/x
  3. Step 3: Cross multiply
    985,657.60x = 1,478,482.08 × 386,195.20
  4. Step 4: Simplify right side
    985,657.60x = 570,982,682,582.02
  5. Step 5: Solve for x
    x = 570,982,682,582.02/985,657.60
  6. Step 6: Final answer
    x = 579,291.11

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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.