Home / 805,977.80-1,207,929.90-490,099.40

Finding the Fourth Proportional to 805,977.80, 1,207,929.90 and 490,099.40

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Solution

The fourth proportional to 805,977.80, 1,207,929.90 and 490,099.40 is: 734,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,977.80 : 1,207,929.90 = 490,099.40 : x
  2. Step 2: Convert to fraction form
    805,977.80/1,207,929.90 = 490,099.40/x
  3. Step 3: Cross multiply
    805,977.80x = 1,207,929.90 × 490,099.40
  4. Step 4: Simplify right side
    805,977.80x = 592,005,719,232.06
  5. Step 5: Solve for x
    x = 592,005,719,232.06/805,977.80
  6. Step 6: Final answer
    x = 734,518.64

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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.