Home / 815,521.03-1,125,432.93-448,013.62

Finding the Fourth Proportional to 815,521.03, 1,125,432.93 and 448,013.62

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Solution

The fourth proportional to 815,521.03, 1,125,432.93 and 448,013.62 is: 618,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,521.03 : 1,125,432.93 = 448,013.62 : x
  2. Step 2: Convert to fraction form
    815,521.03/1,125,432.93 = 448,013.62/x
  3. Step 3: Cross multiply
    815,521.03x = 1,125,432.93 × 448,013.62
  4. Step 4: Simplify right side
    815,521.03x = 504,209,281,036.51
  5. Step 5: Solve for x
    x = 504,209,281,036.51/815,521.03
  6. Step 6: Final answer
    x = 618,266.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.