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Finding the Fourth Proportional to 586,401.60, 879,019.20 and 270,307.20

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Solution

The fourth proportional to 586,401.60, 879,019.20 and 270,307.20 is: 405,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,401.60 : 879,019.20 = 270,307.20 : x
  2. Step 2: Convert to fraction form
    586,401.60/879,019.20 = 270,307.20/x
  3. Step 3: Cross multiply
    586,401.60x = 879,019.20 × 270,307.20
  4. Step 4: Simplify right side
    586,401.60x = 237,605,218,698.24
  5. Step 5: Solve for x
    x = 237,605,218,698.24/586,401.60
  6. Step 6: Final answer
    x = 405,191.97

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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.