Home / 739,174.10-1,020,061.74-399,642.35

Finding the Fourth Proportional to 739,174.10, 1,020,061.74 and 399,642.35

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Solution

The fourth proportional to 739,174.10, 1,020,061.74 and 399,642.35 is: 551,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,174.10 : 1,020,061.74 = 399,642.35 : x
  2. Step 2: Convert to fraction form
    739,174.10/1,020,061.74 = 399,642.35/x
  3. Step 3: Cross multiply
    739,174.10x = 1,020,061.74 × 399,642.35
  4. Step 4: Simplify right side
    739,174.10x = 407,659,870,918.69
  5. Step 5: Solve for x
    x = 407,659,870,918.69/739,174.10
  6. Step 6: Final answer
    x = 551,507.24

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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.