Home / 909,987.60-1,364,981.40-490,083.60

Finding the Fourth Proportional to 909,987.60, 1,364,981.40 and 490,083.60

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Solution

The fourth proportional to 909,987.60, 1,364,981.40 and 490,083.60 is: 735,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,987.60 : 1,364,981.40 = 490,083.60 : x
  2. Step 2: Convert to fraction form
    909,987.60/1,364,981.40 = 490,083.60/x
  3. Step 3: Cross multiply
    909,987.60x = 1,364,981.40 × 490,083.60
  4. Step 4: Simplify right side
    909,987.60x = 668,954,998,445.04
  5. Step 5: Solve for x
    x = 668,954,998,445.04/909,987.60
  6. Step 6: Final answer
    x = 735,125.40

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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.