Home / 784,281.90-1,177,200.45-385,373.10

Finding the Fourth Proportional to 784,281.90, 1,177,200.45 and 385,373.10

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Solution

The fourth proportional to 784,281.90, 1,177,200.45 and 385,373.10 is: 578,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,281.90 : 1,177,200.45 = 385,373.10 : x
  2. Step 2: Convert to fraction form
    784,281.90/1,177,200.45 = 385,373.10/x
  3. Step 3: Cross multiply
    784,281.90x = 1,177,200.45 × 385,373.10
  4. Step 4: Simplify right side
    784,281.90x = 453,661,386,737.90
  5. Step 5: Solve for x
    x = 453,661,386,737.90/784,281.90
  6. Step 6: Final answer
    x = 578,441.74

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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.