Home / 716,663.88-1,075,155.66-218,066.76

Finding the Fourth Proportional to 716,663.88, 1,075,155.66 and 218,066.76

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Solution

The fourth proportional to 716,663.88, 1,075,155.66 and 218,066.76 is: 327,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,663.88 : 1,075,155.66 = 218,066.76 : x
  2. Step 2: Convert to fraction form
    716,663.88/1,075,155.66 = 218,066.76/x
  3. Step 3: Cross multiply
    716,663.88x = 1,075,155.66 × 218,066.76
  4. Step 4: Simplify right side
    716,663.88x = 234,455,711,271.86
  5. Step 5: Solve for x
    x = 234,455,711,271.86/716,663.88
  6. Step 6: Final answer
    x = 327,148.78

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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.