Home / 692,140.95-1,038,375.45-355,233.60

Finding the Fourth Proportional to 692,140.95, 1,038,375.45 and 355,233.60

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Solution

The fourth proportional to 692,140.95, 1,038,375.45 and 355,233.60 is: 532,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,140.95 : 1,038,375.45 = 355,233.60 : x
  2. Step 2: Convert to fraction form
    692,140.95/1,038,375.45 = 355,233.60/x
  3. Step 3: Cross multiply
    692,140.95x = 1,038,375.45 × 355,233.60
  4. Step 4: Simplify right side
    692,140.95x = 368,865,849,255.12
  5. Step 5: Solve for x
    x = 368,865,849,255.12/692,140.95
  6. Step 6: Final answer
    x = 532,934.58

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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.