Home / 807,565.60-1,209,890.40-470,330.20

Finding the Fourth Proportional to 807,565.60, 1,209,890.40 and 470,330.20

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Solution

The fourth proportional to 807,565.60, 1,209,890.40 and 470,330.20 is: 704,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,565.60 : 1,209,890.40 = 470,330.20 : x
  2. Step 2: Convert to fraction form
    807,565.60/1,209,890.40 = 470,330.20/x
  3. Step 3: Cross multiply
    807,565.60x = 1,209,890.40 × 470,330.20
  4. Step 4: Simplify right side
    807,565.60x = 569,047,993,810.08
  5. Step 5: Solve for x
    x = 569,047,993,810.08/807,565.60
  6. Step 6: Final answer
    x = 704,646.15

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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.