Home / 807,619.60-1,209,971.40-470,384.20

Finding the Fourth Proportional to 807,619.60, 1,209,971.40 and 470,384.20

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Solution

The fourth proportional to 807,619.60, 1,209,971.40 and 470,384.20 is: 704,727.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,619.60 : 1,209,971.40 = 470,384.20 : x
  2. Step 2: Convert to fraction form
    807,619.60/1,209,971.40 = 470,384.20/x
  3. Step 3: Cross multiply
    807,619.60x = 1,209,971.40 × 470,384.20
  4. Step 4: Simplify right side
    807,619.60x = 569,151,429,011.88
  5. Step 5: Solve for x
    x = 569,151,429,011.88/807,619.60
  6. Step 6: Final answer
    x = 704,727.11

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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.