Home / 916,987.23-1,375,038.42-384,365.25

Finding the Fourth Proportional to 916,987.23, 1,375,038.42 and 384,365.25

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Solution

The fourth proportional to 916,987.23, 1,375,038.42 and 384,365.25 is: 576,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,987.23 : 1,375,038.42 = 384,365.25 : x
  2. Step 2: Convert to fraction form
    916,987.23/1,375,038.42 = 384,365.25/x
  3. Step 3: Cross multiply
    916,987.23x = 1,375,038.42 × 384,365.25
  4. Step 4: Simplify right side
    916,987.23x = 528,516,986,062.91
  5. Step 5: Solve for x
    x = 528,516,986,062.91/916,987.23
  6. Step 6: Final answer
    x = 576,362.43

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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.