Home / 788,807.20-1,183,340.40-339,743.20

Finding the Fourth Proportional to 788,807.20, 1,183,340.40 and 339,743.20

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Solution

The fourth proportional to 788,807.20, 1,183,340.40 and 339,743.20 is: 509,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,807.20 : 1,183,340.40 = 339,743.20 : x
  2. Step 2: Convert to fraction form
    788,807.20/1,183,340.40 = 339,743.20/x
  3. Step 3: Cross multiply
    788,807.20x = 1,183,340.40 × 339,743.20
  4. Step 4: Simplify right side
    788,807.20x = 402,031,854,185.28
  5. Step 5: Solve for x
    x = 402,031,854,185.28/788,807.20
  6. Step 6: Final answer
    x = 509,670.62

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Double scale
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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.