Home / 692,081.28-1,038,130.56-218,808

Finding the Fourth Proportional to 692,081.28, 1,038,130.56 and 218,808

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Solution

The fourth proportional to 692,081.28, 1,038,130.56 and 218,808 is: 328,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,081.28 : 1,038,130.56 = 218,808 : x
  2. Step 2: Convert to fraction form
    692,081.28/1,038,130.56 = 218,808/x
  3. Step 3: Cross multiply
    692,081.28x = 1,038,130.56 × 218,808
  4. Step 4: Simplify right side
    692,081.28x = 227,151,271,572.48
  5. Step 5: Solve for x
    x = 227,151,271,572.48/692,081.28
  6. Step 6: Final answer
    x = 328,214.73

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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.