Home / 989,258.46-1,482,890.77-389,987.65

Finding the Fourth Proportional to 989,258.46, 1,482,890.77 and 389,987.65

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Solution

The fourth proportional to 989,258.46, 1,482,890.77 and 389,987.65 is: 584,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,258.46 : 1,482,890.77 = 389,987.65 : x
  2. Step 2: Convert to fraction form
    989,258.46/1,482,890.77 = 389,987.65/x
  3. Step 3: Cross multiply
    989,258.46x = 1,482,890.77 × 389,987.65
  4. Step 4: Simplify right side
    989,258.46x = 578,309,086,598.99
  5. Step 5: Solve for x
    x = 578,309,086,598.99/989,258.46
  6. Step 6: Final answer
    x = 584,588.47

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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.