Home / 682,980.40-1,023,779.40-402,353.20

Finding the Fourth Proportional to 682,980.40, 1,023,779.40 and 402,353.20

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Solution

The fourth proportional to 682,980.40, 1,023,779.40 and 402,353.20 is: 603,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,980.40 : 1,023,779.40 = 402,353.20 : x
  2. Step 2: Convert to fraction form
    682,980.40/1,023,779.40 = 402,353.20/x
  3. Step 3: Cross multiply
    682,980.40x = 1,023,779.40 × 402,353.20
  4. Step 4: Simplify right side
    682,980.40x = 411,920,917,684.08
  5. Step 5: Solve for x
    x = 411,920,917,684.08/682,980.40
  6. Step 6: Final answer
    x = 603,122.60

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1.5x scale

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.