Home / 1,051,431.20-1,576,801.20-386,496.80

Finding the Fourth Proportional to 1,051,431.20, 1,576,801.20 and 386,496.80

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Solution

The fourth proportional to 1,051,431.20, 1,576,801.20 and 386,496.80 is: 579,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,431.20 : 1,576,801.20 = 386,496.80 : x
  2. Step 2: Convert to fraction form
    1,051,431.20/1,576,801.20 = 386,496.80/x
  3. Step 3: Cross multiply
    1,051,431.20x = 1,576,801.20 × 386,496.80
  4. Step 4: Simplify right side
    1,051,431.20x = 609,428,618,036.16
  5. Step 5: Solve for x
    x = 609,428,618,036.16/1,051,431.20
  6. Step 6: Final answer
    x = 579,618.16

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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.