Home / 874,140.60-1,311,210.90-542,364.60

Finding the Fourth Proportional to 874,140.60, 1,311,210.90 and 542,364.60

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Solution

The fourth proportional to 874,140.60, 1,311,210.90 and 542,364.60 is: 813,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,140.60 : 1,311,210.90 = 542,364.60 : x
  2. Step 2: Convert to fraction form
    874,140.60/1,311,210.90 = 542,364.60/x
  3. Step 3: Cross multiply
    874,140.60x = 1,311,210.90 × 542,364.60
  4. Step 4: Simplify right side
    874,140.60x = 711,154,375,294.14
  5. Step 5: Solve for x
    x = 711,154,375,294.14/874,140.60
  6. Step 6: Final answer
    x = 813,546.90

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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.