Home / 998,970.36-1,378,576.89-540,085.02

Finding the Fourth Proportional to 998,970.36, 1,378,576.89 and 540,085.02

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Solution

The fourth proportional to 998,970.36, 1,378,576.89 and 540,085.02 is: 745,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,970.36 : 1,378,576.89 = 540,085.02 : x
  2. Step 2: Convert to fraction form
    998,970.36/1,378,576.89 = 540,085.02/x
  3. Step 3: Cross multiply
    998,970.36x = 1,378,576.89 × 540,085.02
  4. Step 4: Simplify right side
    998,970.36x = 744,548,727,207.19
  5. Step 5: Solve for x
    x = 744,548,727,207.19/998,970.36
  6. Step 6: Final answer
    x = 745,316.13

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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.