Home / 989,440.60-1,484,160.90-889,713.40

Finding the Fourth Proportional to 989,440.60, 1,484,160.90 and 889,713.40

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Solution

The fourth proportional to 989,440.60, 1,484,160.90 and 889,713.40 is: 1,334,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,440.60 : 1,484,160.90 = 889,713.40 : x
  2. Step 2: Convert to fraction form
    989,440.60/1,484,160.90 = 889,713.40/x
  3. Step 3: Cross multiply
    989,440.60x = 1,484,160.90 × 889,713.40
  4. Step 4: Simplify right side
    989,440.60x = 1,320,477,840,486.06
  5. Step 5: Solve for x
    x = 1,320,477,840,486.06/989,440.60
  6. Step 6: Final answer
    x = 1,334,570.10

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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.