Home / 692,397.60-1,038,492.51-219,021.45

Finding the Fourth Proportional to 692,397.60, 1,038,492.51 and 219,021.45

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Solution

The fourth proportional to 692,397.60, 1,038,492.51 and 219,021.45 is: 328,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,397.60 : 1,038,492.51 = 219,021.45 : x
  2. Step 2: Convert to fraction form
    692,397.60/1,038,492.51 = 219,021.45/x
  3. Step 3: Cross multiply
    692,397.60x = 1,038,492.51 × 219,021.45
  4. Step 4: Simplify right side
    692,397.60x = 227,452,135,354.34
  5. Step 5: Solve for x
    x = 227,452,135,354.34/692,397.60
  6. Step 6: Final answer
    x = 328,499.31

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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.