Home / 692,215.10-1,038,225.45-218,948.30

Finding the Fourth Proportional to 692,215.10, 1,038,225.45 and 218,948.30

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Solution

The fourth proportional to 692,215.10, 1,038,225.45 and 218,948.30 is: 328,391.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,215.10 : 1,038,225.45 = 218,948.30 : x
  2. Step 2: Convert to fraction form
    692,215.10/1,038,225.45 = 218,948.30/x
  3. Step 3: Cross multiply
    692,215.10x = 1,038,225.45 × 218,948.30
  4. Step 4: Simplify right side
    692,215.10x = 227,317,697,294.24
  5. Step 5: Solve for x
    x = 227,317,697,294.24/692,215.10
  6. Step 6: Final answer
    x = 328,391.71

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1.5x scale

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.