Home / 690,763.60-1,036,145.40-410,136.40

Finding the Fourth Proportional to 690,763.60, 1,036,145.40 and 410,136.40

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Solution

The fourth proportional to 690,763.60, 1,036,145.40 and 410,136.40 is: 615,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,763.60 : 1,036,145.40 = 410,136.40 : x
  2. Step 2: Convert to fraction form
    690,763.60/1,036,145.40 = 410,136.40/x
  3. Step 3: Cross multiply
    690,763.60x = 1,036,145.40 × 410,136.40
  4. Step 4: Simplify right side
    690,763.60x = 424,960,944,232.56
  5. Step 5: Solve for x
    x = 424,960,944,232.56/690,763.60
  6. Step 6: Final answer
    x = 615,204.60

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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.