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Finding the Fourth Proportional to 875,184.40, 1,311,221.40 and 750,768.40

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Solution

The fourth proportional to 875,184.40, 1,311,221.40 and 750,768.40 is: 1,124,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,184.40 : 1,311,221.40 = 750,768.40 : x
  2. Step 2: Convert to fraction form
    875,184.40/1,311,221.40 = 750,768.40/x
  3. Step 3: Cross multiply
    875,184.40x = 1,311,221.40 × 750,768.40
  4. Step 4: Simplify right side
    875,184.40x = 984,423,592,523.76
  5. Step 5: Solve for x
    x = 984,423,592,523.76/875,184.40
  6. Step 6: Final answer
    x = 1,124,818.49

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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.