Home / 807,435.60-1,209,695.40-470,200.20

Finding the Fourth Proportional to 807,435.60, 1,209,695.40 and 470,200.20

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Solution

The fourth proportional to 807,435.60, 1,209,695.40 and 470,200.20 is: 704,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,435.60 : 1,209,695.40 = 470,200.20 : x
  2. Step 2: Convert to fraction form
    807,435.60/1,209,695.40 = 470,200.20/x
  3. Step 3: Cross multiply
    807,435.60x = 1,209,695.40 × 470,200.20
  4. Step 4: Simplify right side
    807,435.60x = 568,799,019,019.08
  5. Step 5: Solve for x
    x = 568,799,019,019.08/807,435.60
  6. Step 6: Final answer
    x = 704,451.25

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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.