Home / 711,827.80-1,068,000.90-291,405.40

Finding the Fourth Proportional to 711,827.80, 1,068,000.90 and 291,405.40

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Solution

The fourth proportional to 711,827.80, 1,068,000.90 and 291,405.40 is: 437,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,827.80 : 1,068,000.90 = 291,405.40 : x
  2. Step 2: Convert to fraction form
    711,827.80/1,068,000.90 = 291,405.40/x
  3. Step 3: Cross multiply
    711,827.80x = 1,068,000.90 × 291,405.40
  4. Step 4: Simplify right side
    711,827.80x = 311,221,229,464.86
  5. Step 5: Solve for x
    x = 311,221,229,464.86/711,827.80
  6. Step 6: Final answer
    x = 437,214.21

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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.