Home / 1,287,030.11-1,929,788.11-488,367.81

Finding the Fourth Proportional to 1,287,030.11, 1,929,788.11 and 488,367.81

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Solution

The fourth proportional to 1,287,030.11, 1,929,788.11 and 488,367.81 is: 732,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,030.11 : 1,929,788.11 = 488,367.81 : x
  2. Step 2: Convert to fraction form
    1,287,030.11/1,929,788.11 = 488,367.81/x
  3. Step 3: Cross multiply
    1,287,030.11x = 1,929,788.11 × 488,367.81
  4. Step 4: Simplify right side
    1,287,030.11x = 942,446,390,602.90
  5. Step 5: Solve for x
    x = 942,446,390,602.90/1,287,030.11
  6. Step 6: Final answer
    x = 732,264.45

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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.