Home / 989,175.80-1,482,988.57-390,585.01

Finding the Fourth Proportional to 989,175.80, 1,482,988.57 and 390,585.01

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Solution

The fourth proportional to 989,175.80, 1,482,988.57 and 390,585.01 is: 585,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,175.80 : 1,482,988.57 = 390,585.01 : x
  2. Step 2: Convert to fraction form
    989,175.80/1,482,988.57 = 390,585.01/x
  3. Step 3: Cross multiply
    989,175.80x = 1,482,988.57 × 390,585.01
  4. Step 4: Simplify right side
    989,175.80x = 579,233,105,443.34
  5. Step 5: Solve for x
    x = 579,233,105,443.34/989,175.80
  6. Step 6: Final answer
    x = 585,571.45

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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.