Home / 692,421.60-1,038,049.20-359,997.60

Finding the Fourth Proportional to 692,421.60, 1,038,049.20 and 359,997.60

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Solution

The fourth proportional to 692,421.60, 1,038,049.20 and 359,997.60 is: 539,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,421.60 : 1,038,049.20 = 359,997.60 : x
  2. Step 2: Convert to fraction form
    692,421.60/1,038,049.20 = 359,997.60/x
  3. Step 3: Cross multiply
    692,421.60x = 1,038,049.20 × 359,997.60
  4. Step 4: Simplify right side
    692,421.60x = 373,695,220,681.92
  5. Step 5: Solve for x
    x = 373,695,220,681.92/692,421.60
  6. Step 6: Final answer
    x = 539,693.19

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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.