Home / 785,827.20-1,178,740.80-260,515.20

Finding the Fourth Proportional to 785,827.20, 1,178,740.80 and 260,515.20

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Solution

The fourth proportional to 785,827.20, 1,178,740.80 and 260,515.20 is: 390,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,827.20 : 1,178,740.80 = 260,515.20 : x
  2. Step 2: Convert to fraction form
    785,827.20/1,178,740.80 = 260,515.20/x
  3. Step 3: Cross multiply
    785,827.20x = 1,178,740.80 × 260,515.20
  4. Step 4: Simplify right side
    785,827.20x = 307,079,895,260.16
  5. Step 5: Solve for x
    x = 307,079,895,260.16/785,827.20
  6. Step 6: Final answer
    x = 390,772.80

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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.