Home / 989,141.60-1,483,712.40-918,282.80

Finding the Fourth Proportional to 989,141.60, 1,483,712.40 and 918,282.80

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Solution

The fourth proportional to 989,141.60, 1,483,712.40 and 918,282.80 is: 1,377,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,141.60 : 1,483,712.40 = 918,282.80 : x
  2. Step 2: Convert to fraction form
    989,141.60/1,483,712.40 = 918,282.80/x
  3. Step 3: Cross multiply
    989,141.60x = 1,483,712.40 × 918,282.80
  4. Step 4: Simplify right side
    989,141.60x = 1,362,467,577,066.72
  5. Step 5: Solve for x
    x = 1,362,467,577,066.72/989,141.60
  6. Step 6: Final answer
    x = 1,377,424.20

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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.