Home / 987,409.30-1,480,955.55-355,998.10

Finding the Fourth Proportional to 987,409.30, 1,480,955.55 and 355,998.10

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Solution

The fourth proportional to 987,409.30, 1,480,955.55 and 355,998.10 is: 533,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,409.30 : 1,480,955.55 = 355,998.10 : x
  2. Step 2: Convert to fraction form
    987,409.30/1,480,955.55 = 355,998.10/x
  3. Step 3: Cross multiply
    987,409.30x = 1,480,955.55 × 355,998.10
  4. Step 4: Simplify right side
    987,409.30x = 527,217,361,984.46
  5. Step 5: Solve for x
    x = 527,217,361,984.46/987,409.30
  6. Step 6: Final answer
    x = 533,940.04

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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.