Home / 723,860.18-998,928.24-401,570.28

Finding the Fourth Proportional to 723,860.18, 998,928.24 and 401,570.28

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Solution

The fourth proportional to 723,860.18, 998,928.24 and 401,570.28 is: 554,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,860.18 : 998,928.24 = 401,570.28 : x
  2. Step 2: Convert to fraction form
    723,860.18/998,928.24 = 401,570.28/x
  3. Step 3: Cross multiply
    723,860.18x = 998,928.24 × 401,570.28
  4. Step 4: Simplify right side
    723,860.18x = 401,139,893,036.71
  5. Step 5: Solve for x
    x = 401,139,893,036.71/723,860.18
  6. Step 6: Final answer
    x = 554,167.65

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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.