Home / 721,897.79-1,083,911.17-402,673.36

Finding the Fourth Proportional to 721,897.79, 1,083,911.17 and 402,673.36

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Solution

The fourth proportional to 721,897.79, 1,083,911.17 and 402,673.36 is: 604,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,897.79 : 1,083,911.17 = 402,673.36 : x
  2. Step 2: Convert to fraction form
    721,897.79/1,083,911.17 = 402,673.36/x
  3. Step 3: Cross multiply
    721,897.79x = 1,083,911.17 × 402,673.36
  4. Step 4: Simplify right side
    721,897.79x = 436,462,156,409.07
  5. Step 5: Solve for x
    x = 436,462,156,409.07/721,897.79
  6. Step 6: Final answer
    x = 604,603.81

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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.