Home / 765,929.70-1,148,900.80-260,605.52

Finding the Fourth Proportional to 765,929.70, 1,148,900.80 and 260,605.52

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Solution

The fourth proportional to 765,929.70, 1,148,900.80 and 260,605.52 is: 390,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,929.70 : 1,148,900.80 = 260,605.52 : x
  2. Step 2: Convert to fraction form
    765,929.70/1,148,900.80 = 260,605.52/x
  3. Step 3: Cross multiply
    765,929.70x = 1,148,900.80 × 260,605.52
  4. Step 4: Simplify right side
    765,929.70x = 299,409,890,412.42
  5. Step 5: Solve for x
    x = 299,409,890,412.42/765,929.70
  6. Step 6: Final answer
    x = 390,910.41

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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.