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Finding the Fourth Proportional to 999,956.83, 1,500,225.72 and 360,248.40

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Solution

The fourth proportional to 999,956.83, 1,500,225.72 and 360,248.40 is: 540,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,956.83 : 1,500,225.72 = 360,248.40 : x
  2. Step 2: Convert to fraction form
    999,956.83/1,500,225.72 = 360,248.40/x
  3. Step 3: Cross multiply
    999,956.83x = 1,500,225.72 × 360,248.40
  4. Step 4: Simplify right side
    999,956.83x = 540,453,915,268.85
  5. Step 5: Solve for x
    x = 540,453,915,268.85/999,956.83
  6. Step 6: Final answer
    x = 540,477.25

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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.