Home / 739,150.16-1,020,029.55-399,620.84

Finding the Fourth Proportional to 739,150.16, 1,020,029.55 and 399,620.84

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Solution

The fourth proportional to 739,150.16, 1,020,029.55 and 399,620.84 is: 551,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,150.16 : 1,020,029.55 = 399,620.84 : x
  2. Step 2: Convert to fraction form
    739,150.16/1,020,029.55 = 399,620.84/x
  3. Step 3: Cross multiply
    739,150.16x = 1,020,029.55 × 399,620.84
  4. Step 4: Simplify right side
    739,150.16x = 407,625,065,595.82
  5. Step 5: Solve for x
    x = 407,625,065,595.82/739,150.16
  6. Step 6: Final answer
    x = 551,478.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.