Home / 1,539,715.84-2,308,785.12-820,467.40

Finding the Fourth Proportional to 1,539,715.84, 2,308,785.12 and 820,467.40

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Solution

The fourth proportional to 1,539,715.84, 2,308,785.12 and 820,467.40 is: 1,230,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,715.84 : 2,308,785.12 = 820,467.40 : x
  2. Step 2: Convert to fraction form
    1,539,715.84/2,308,785.12 = 820,467.40/x
  3. Step 3: Cross multiply
    1,539,715.84x = 2,308,785.12 × 820,467.40
  4. Step 4: Simplify right side
    1,539,715.84x = 1,894,282,924,565.09
  5. Step 5: Solve for x
    x = 1,894,282,924,565.09/1,539,715.84
  6. Step 6: Final answer
    x = 1,230,280.86

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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.