Home / 970,779.40-1,455,909.90-339,627.40

Finding the Fourth Proportional to 970,779.40, 1,455,909.90 and 339,627.40

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Solution

The fourth proportional to 970,779.40, 1,455,909.90 and 339,627.40 is: 509,350.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,779.40 : 1,455,909.90 = 339,627.40 : x
  2. Step 2: Convert to fraction form
    970,779.40/1,455,909.90 = 339,627.40/x
  3. Step 3: Cross multiply
    970,779.40x = 1,455,909.90 × 339,627.40
  4. Step 4: Simplify right side
    970,779.40x = 494,466,893,971.26
  5. Step 5: Solve for x
    x = 494,466,893,971.26/970,779.40
  6. Step 6: Final answer
    x = 509,350.42

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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.