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Finding the Fourth Proportional to 613,530.40, 919,748.40 and 239,466.40

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Solution

The fourth proportional to 613,530.40, 919,748.40 and 239,466.40 is: 358,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,530.40 : 919,748.40 = 239,466.40 : x
  2. Step 2: Convert to fraction form
    613,530.40/919,748.40 = 239,466.40/x
  3. Step 3: Cross multiply
    613,530.40x = 919,748.40 × 239,466.40
  4. Step 4: Simplify right side
    613,530.40x = 220,248,838,253.76
  5. Step 5: Solve for x
    x = 220,248,838,253.76/613,530.40
  6. Step 6: Final answer
    x = 358,986.02

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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.