Home / 718,783.47-1,078,060.93-238,971.40

Finding the Fourth Proportional to 718,783.47, 1,078,060.93 and 238,971.40

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Solution

The fourth proportional to 718,783.47, 1,078,060.93 and 238,971.40 is: 358,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,783.47 : 1,078,060.93 = 238,971.40 : x
  2. Step 2: Convert to fraction form
    718,783.47/1,078,060.93 = 238,971.40/x
  3. Step 3: Cross multiply
    718,783.47x = 1,078,060.93 × 238,971.40
  4. Step 4: Simplify right side
    718,783.47x = 257,625,726,434.82
  5. Step 5: Solve for x
    x = 257,625,726,434.82/718,783.47
  6. Step 6: Final answer
    x = 358,419.10

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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.