Home / 989,176.46-1,482,767.78-389,905.65

Finding the Fourth Proportional to 989,176.46, 1,482,767.78 and 389,905.65

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Solution

The fourth proportional to 989,176.46, 1,482,767.78 and 389,905.65 is: 584,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,176.46 : 1,482,767.78 = 389,905.65 : x
  2. Step 2: Convert to fraction form
    989,176.46/1,482,767.78 = 389,905.65/x
  3. Step 3: Cross multiply
    989,176.46x = 1,482,767.78 × 389,905.65
  4. Step 4: Simplify right side
    989,176.46x = 578,139,533,110.43
  5. Step 5: Solve for x
    x = 578,139,533,110.43/989,176.46
  6. Step 6: Final answer
    x = 584,465.52

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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.