Home / 771,807.90-1,157,711.85-210,842.40

Finding the Fourth Proportional to 771,807.90, 1,157,711.85 and 210,842.40

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Solution

The fourth proportional to 771,807.90, 1,157,711.85 and 210,842.40 is: 316,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,807.90 : 1,157,711.85 = 210,842.40 : x
  2. Step 2: Convert to fraction form
    771,807.90/1,157,711.85 = 210,842.40/x
  3. Step 3: Cross multiply
    771,807.90x = 1,157,711.85 × 210,842.40
  4. Step 4: Simplify right side
    771,807.90x = 244,094,744,962.44
  5. Step 5: Solve for x
    x = 244,094,744,962.44/771,807.90
  6. Step 6: Final answer
    x = 316,263.60

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Similar ratio
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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.