Home / 818,287.74-1,129,233.51-455,715.90

Finding the Fourth Proportional to 818,287.74, 1,129,233.51 and 455,715.90

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Solution

The fourth proportional to 818,287.74, 1,129,233.51 and 455,715.90 is: 628,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,287.74 : 1,129,233.51 = 455,715.90 : x
  2. Step 2: Convert to fraction form
    818,287.74/1,129,233.51 = 455,715.90/x
  3. Step 3: Cross multiply
    818,287.74x = 1,129,233.51 × 455,715.90
  4. Step 4: Simplify right side
    818,287.74x = 514,609,665,319.81
  5. Step 5: Solve for x
    x = 514,609,665,319.81/818,287.74
  6. Step 6: Final answer
    x = 628,885.95

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1.5x scale

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.