Home / 1,370,278-2,055,613.02-423,721.72

Finding the Fourth Proportional to 1,370,278, 2,055,613.02 and 423,721.72

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Solution

The fourth proportional to 1,370,278, 2,055,613.02 and 423,721.72 is: 635,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,278 : 2,055,613.02 = 423,721.72 : x
  2. Step 2: Convert to fraction form
    1,370,278/2,055,613.02 = 423,721.72/x
  3. Step 3: Cross multiply
    1,370,278x = 2,055,613.02 × 423,721.72
  4. Step 4: Simplify right side
    1,370,278x = 871,007,884,488.79
  5. Step 5: Solve for x
    x = 871,007,884,488.79/1,370,278
  6. Step 6: Final answer
    x = 635,643.19

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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.