Home / 1,298,497.74-1,947,955.89-399,939.18

Finding the Fourth Proportional to 1,298,497.74, 1,947,955.89 and 399,939.18

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Solution

The fourth proportional to 1,298,497.74, 1,947,955.89 and 399,939.18 is: 599,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,497.74 : 1,947,955.89 = 399,939.18 : x
  2. Step 2: Convert to fraction form
    1,298,497.74/1,947,955.89 = 399,939.18/x
  3. Step 3: Cross multiply
    1,298,497.74x = 1,947,955.89 × 399,939.18
  4. Step 4: Simplify right side
    1,298,497.74x = 779,063,881,322.77
  5. Step 5: Solve for x
    x = 779,063,881,322.77/1,298,497.74
  6. Step 6: Final answer
    x = 599,973.23

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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.