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Finding the Fourth Proportional to 518,580.06, 778,001.32 and 144,603.06

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Solution

The fourth proportional to 518,580.06, 778,001.32 and 144,603.06 is: 216,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,580.06 : 778,001.32 = 144,603.06 : x
  2. Step 2: Convert to fraction form
    518,580.06/778,001.32 = 144,603.06/x
  3. Step 3: Cross multiply
    518,580.06x = 778,001.32 × 144,603.06
  4. Step 4: Simplify right side
    518,580.06x = 112,501,371,556.04
  5. Step 5: Solve for x
    x = 112,501,371,556.04/518,580.06
  6. Step 6: Final answer
    x = 216,941.18

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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.