Home / 985,842.30-1,478,763.45-424,876.80

Finding the Fourth Proportional to 985,842.30, 1,478,763.45 and 424,876.80

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Solution

The fourth proportional to 985,842.30, 1,478,763.45 and 424,876.80 is: 637,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,842.30 : 1,478,763.45 = 424,876.80 : x
  2. Step 2: Convert to fraction form
    985,842.30/1,478,763.45 = 424,876.80/x
  3. Step 3: Cross multiply
    985,842.30x = 1,478,763.45 × 424,876.80
  4. Step 4: Simplify right side
    985,842.30x = 628,292,282,592.96
  5. Step 5: Solve for x
    x = 628,292,282,592.96/985,842.30
  6. Step 6: Final answer
    x = 637,315.20

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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.