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Finding the Fourth Proportional to 479,547.36, 660,859.69 and 343,344.72

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Solution

The fourth proportional to 479,547.36, 660,859.69 and 343,344.72 is: 473,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,547.36 : 660,859.69 = 343,344.72 : x
  2. Step 2: Convert to fraction form
    479,547.36/660,859.69 = 343,344.72/x
  3. Step 3: Cross multiply
    479,547.36x = 660,859.69 × 343,344.72
  4. Step 4: Simplify right side
    479,547.36x = 226,902,686,520.31
  5. Step 5: Solve for x
    x = 226,902,686,520.31/479,547.36
  6. Step 6: Final answer
    x = 473,160.12

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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.