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Finding the Fourth Proportional to 619,880.40, 929,459.30 and 240,357.74

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Solution

The fourth proportional to 619,880.40, 929,459.30 and 240,357.74 is: 360,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,880.40 : 929,459.30 = 240,357.74 : x
  2. Step 2: Convert to fraction form
    619,880.40/929,459.30 = 240,357.74/x
  3. Step 3: Cross multiply
    619,880.40x = 929,459.30 × 240,357.74
  4. Step 4: Simplify right side
    619,880.40x = 223,402,730,920.90
  5. Step 5: Solve for x
    x = 223,402,730,920.90/619,880.40
  6. Step 6: Final answer
    x = 360,396.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.