Home / 784,140.60-1,176,210.90-717,785.40

Finding the Fourth Proportional to 784,140.60, 1,176,210.90 and 717,785.40

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Solution

The fourth proportional to 784,140.60, 1,176,210.90 and 717,785.40 is: 1,076,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,140.60 : 1,176,210.90 = 717,785.40 : x
  2. Step 2: Convert to fraction form
    784,140.60/1,176,210.90 = 717,785.40/x
  3. Step 3: Cross multiply
    784,140.60x = 1,176,210.90 × 717,785.40
  4. Step 4: Simplify right side
    784,140.60x = 844,267,011,340.86
  5. Step 5: Solve for x
    x = 844,267,011,340.86/784,140.60
  6. Step 6: Final answer
    x = 1,076,678.10

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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.