Home / 1,239,979.47-1,710,967.91-730,612.59

Finding the Fourth Proportional to 1,239,979.47, 1,710,967.91 and 730,612.59

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Solution

The fourth proportional to 1,239,979.47, 1,710,967.91 and 730,612.59 is: 1,008,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,979.47 : 1,710,967.91 = 730,612.59 : x
  2. Step 2: Convert to fraction form
    1,239,979.47/1,710,967.91 = 730,612.59/x
  3. Step 3: Cross multiply
    1,239,979.47x = 1,710,967.91 × 730,612.59
  4. Step 4: Simplify right side
    1,239,979.47x = 1,250,054,692,478.92
  5. Step 5: Solve for x
    x = 1,250,054,692,478.92/1,239,979.47
  6. Step 6: Final answer
    x = 1,008,125.31

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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.