Home / 810,847.28-1,119,000.75-538,445.45

Finding the Fourth Proportional to 810,847.28, 1,119,000.75 and 538,445.45

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Solution

The fourth proportional to 810,847.28, 1,119,000.75 and 538,445.45 is: 743,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,847.28 : 1,119,000.75 = 538,445.45 : x
  2. Step 2: Convert to fraction form
    810,847.28/1,119,000.75 = 538,445.45/x
  3. Step 3: Cross multiply
    810,847.28x = 1,119,000.75 × 538,445.45
  4. Step 4: Simplify right side
    810,847.28x = 602,520,862,384.09
  5. Step 5: Solve for x
    x = 602,520,862,384.09/810,847.28
  6. Step 6: Final answer
    x = 743,075.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.