Home / 990,552.04-1,485,220.83-421,609.15

Finding the Fourth Proportional to 990,552.04, 1,485,220.83 and 421,609.15

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Solution

The fourth proportional to 990,552.04, 1,485,220.83 and 421,609.15 is: 632,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,552.04 : 1,485,220.83 = 421,609.15 : x
  2. Step 2: Convert to fraction form
    990,552.04/1,485,220.83 = 421,609.15/x
  3. Step 3: Cross multiply
    990,552.04x = 1,485,220.83 × 421,609.15
  4. Step 4: Simplify right side
    990,552.04x = 626,182,695,531.41
  5. Step 5: Solve for x
    x = 626,182,695,531.41/990,552.04
  6. Step 6: Final answer
    x = 632,155.27

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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.