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Finding the Fourth Proportional to 532,443.08, 734,801.20 and 290,748.08

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Solution

The fourth proportional to 532,443.08, 734,801.20 and 290,748.08 is: 401,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,443.08 : 734,801.20 = 290,748.08 : x
  2. Step 2: Convert to fraction form
    532,443.08/734,801.20 = 290,748.08/x
  3. Step 3: Cross multiply
    532,443.08x = 734,801.20 × 290,748.08
  4. Step 4: Simplify right side
    532,443.08x = 213,642,038,081.70
  5. Step 5: Solve for x
    x = 213,642,038,081.70/532,443.08
  6. Step 6: Final answer
    x = 401,248.60

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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.