Home / 665,258.40-918,056.70-359,334.90

Finding the Fourth Proportional to 665,258.40, 918,056.70 and 359,334.90

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Solution

The fourth proportional to 665,258.40, 918,056.70 and 359,334.90 is: 495,882.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,258.40 : 918,056.70 = 359,334.90 : x
  2. Step 2: Convert to fraction form
    665,258.40/918,056.70 = 359,334.90/x
  3. Step 3: Cross multiply
    665,258.40x = 918,056.70 × 359,334.90
  4. Step 4: Simplify right side
    665,258.40x = 329,889,812,488.83
  5. Step 5: Solve for x
    x = 329,889,812,488.83/665,258.40
  6. Step 6: Final answer
    x = 495,882.22

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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.