Home / 900,887.61-1,243,225.03-492,989.55

Finding the Fourth Proportional to 900,887.61, 1,243,225.03 and 492,989.55

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Solution

The fourth proportional to 900,887.61, 1,243,225.03 and 492,989.55 is: 680,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,887.61 : 1,243,225.03 = 492,989.55 : x
  2. Step 2: Convert to fraction form
    900,887.61/1,243,225.03 = 492,989.55/x
  3. Step 3: Cross multiply
    900,887.61x = 1,243,225.03 × 492,989.55
  4. Step 4: Simplify right side
    900,887.61x = 612,896,940,639.84
  5. Step 5: Solve for x
    x = 612,896,940,639.84/900,887.61
  6. Step 6: Final answer
    x = 680,325.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.