Home / 676,721.44-933,453.12-435,318.72

Finding the Fourth Proportional to 676,721.44, 933,453.12 and 435,318.72

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Solution

The fourth proportional to 676,721.44, 933,453.12 and 435,318.72 is: 600,468.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,721.44 : 933,453.12 = 435,318.72 : x
  2. Step 2: Convert to fraction form
    676,721.44/933,453.12 = 435,318.72/x
  3. Step 3: Cross multiply
    676,721.44x = 933,453.12 × 435,318.72
  4. Step 4: Simplify right side
    676,721.44x = 406,349,617,378.41
  5. Step 5: Solve for x
    x = 406,349,617,378.41/676,721.44
  6. Step 6: Final answer
    x = 600,468.07

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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.