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Finding the Fourth Proportional to 438,859.20, 605,209.68 and 302,675.52

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Solution

The fourth proportional to 438,859.20, 605,209.68 and 302,675.52 is: 417,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,859.20 : 605,209.68 = 302,675.52 : x
  2. Step 2: Convert to fraction form
    438,859.20/605,209.68 = 302,675.52/x
  3. Step 3: Cross multiply
    438,859.20x = 605,209.68 × 302,675.52
  4. Step 4: Simplify right side
    438,859.20x = 183,182,154,603.03
  5. Step 5: Solve for x
    x = 183,182,154,603.03/438,859.20
  6. Step 6: Final answer
    x = 417,405.30

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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.