Home / 987,064.80-1,480,942.80-355,999.20

Finding the Fourth Proportional to 987,064.80, 1,480,942.80 and 355,999.20

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Solution

The fourth proportional to 987,064.80, 1,480,942.80 and 355,999.20 is: 534,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,064.80 : 1,480,942.80 = 355,999.20 : x
  2. Step 2: Convert to fraction form
    987,064.80/1,480,942.80 = 355,999.20/x
  3. Step 3: Cross multiply
    987,064.80x = 1,480,942.80 × 355,999.20
  4. Step 4: Simplify right side
    987,064.80x = 527,214,452,045.76
  5. Step 5: Solve for x
    x = 527,214,452,045.76/987,064.80
  6. Step 6: Final answer
    x = 534,123.45

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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.