Home / 875,270.40-1,310,281.20-520,101.60

Finding the Fourth Proportional to 875,270.40, 1,310,281.20 and 520,101.60

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Solution

The fourth proportional to 875,270.40, 1,310,281.20 and 520,101.60 is: 778,592.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,270.40 : 1,310,281.20 = 520,101.60 : x
  2. Step 2: Convert to fraction form
    875,270.40/1,310,281.20 = 520,101.60/x
  3. Step 3: Cross multiply
    875,270.40x = 1,310,281.20 × 520,101.60
  4. Step 4: Simplify right side
    875,270.40x = 681,479,348,569.92
  5. Step 5: Solve for x
    x = 681,479,348,569.92/875,270.40
  6. Step 6: Final answer
    x = 778,592.93

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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.