Home / 759,692.05-1,139,117.38-310,728.18

Finding the Fourth Proportional to 759,692.05, 1,139,117.38 and 310,728.18

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Solution

The fourth proportional to 759,692.05, 1,139,117.38 and 310,728.18 is: 465,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,692.05 : 1,139,117.38 = 310,728.18 : x
  2. Step 2: Convert to fraction form
    759,692.05/1,139,117.38 = 310,728.18/x
  3. Step 3: Cross multiply
    759,692.05x = 1,139,117.38 × 310,728.18
  4. Step 4: Simplify right side
    759,692.05x = 353,955,873,788.64
  5. Step 5: Solve for x
    x = 353,955,873,788.64/759,692.05
  6. Step 6: Final answer
    x = 465,920.20

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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.