Home / 773,985.53-1,161,117.79-318,496.32

Finding the Fourth Proportional to 773,985.53, 1,161,117.79 and 318,496.32

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Solution

The fourth proportional to 773,985.53, 1,161,117.79 and 318,496.32 is: 477,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,985.53 : 1,161,117.79 = 318,496.32 : x
  2. Step 2: Convert to fraction form
    773,985.53/1,161,117.79 = 318,496.32/x
  3. Step 3: Cross multiply
    773,985.53x = 1,161,117.79 × 318,496.32
  4. Step 4: Simplify right side
    773,985.53x = 369,811,742,405.29
  5. Step 5: Solve for x
    x = 369,811,742,405.29/773,985.53
  6. Step 6: Final answer
    x = 477,801.88

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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.