Home / 900,021.60-1,350,032.40-521,589.60

Finding the Fourth Proportional to 900,021.60, 1,350,032.40 and 521,589.60

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Solution

The fourth proportional to 900,021.60, 1,350,032.40 and 521,589.60 is: 782,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,021.60 : 1,350,032.40 = 521,589.60 : x
  2. Step 2: Convert to fraction form
    900,021.60/1,350,032.40 = 521,589.60/x
  3. Step 3: Cross multiply
    900,021.60x = 1,350,032.40 × 521,589.60
  4. Step 4: Simplify right side
    900,021.60x = 704,162,859,503.04
  5. Step 5: Solve for x
    x = 704,162,859,503.04/900,021.60
  6. Step 6: Final answer
    x = 782,384.40

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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.