Home / 906,605.20-1,359,907.80-315,629.20

Finding the Fourth Proportional to 906,605.20, 1,359,907.80 and 315,629.20

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Solution

The fourth proportional to 906,605.20, 1,359,907.80 and 315,629.20 is: 473,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,605.20 : 1,359,907.80 = 315,629.20 : x
  2. Step 2: Convert to fraction form
    906,605.20/1,359,907.80 = 315,629.20/x
  3. Step 3: Cross multiply
    906,605.20x = 1,359,907.80 × 315,629.20
  4. Step 4: Simplify right side
    906,605.20x = 429,226,610,987.76
  5. Step 5: Solve for x
    x = 429,226,610,987.76/906,605.20
  6. Step 6: Final answer
    x = 473,443.80

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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.