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Finding the Fourth Proportional to 989,497.80, 1,482,497.10 and 877,523.40

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Solution

The fourth proportional to 989,497.80, 1,482,497.10 and 877,523.40 is: 1,314,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,497.80 : 1,482,497.10 = 877,523.40 : x
  2. Step 2: Convert to fraction form
    989,497.80/1,482,497.10 = 877,523.40/x
  3. Step 3: Cross multiply
    989,497.80x = 1,482,497.10 × 877,523.40
  4. Step 4: Simplify right side
    989,497.80x = 1,300,925,895,682.14
  5. Step 5: Solve for x
    x = 1,300,925,895,682.14/989,497.80
  6. Step 6: Final answer
    x = 1,314,733.49

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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.