Home / 805,466.40-1,208,345.28-331,888.32

Finding the Fourth Proportional to 805,466.40, 1,208,345.28 and 331,888.32

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Solution

The fourth proportional to 805,466.40, 1,208,345.28 and 331,888.32 is: 497,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,466.40 : 1,208,345.28 = 331,888.32 : x
  2. Step 2: Convert to fraction form
    805,466.40/1,208,345.28 = 331,888.32/x
  3. Step 3: Cross multiply
    805,466.40x = 1,208,345.28 × 331,888.32
  4. Step 4: Simplify right side
    805,466.40x = 401,035,684,959.13
  5. Step 5: Solve for x
    x = 401,035,684,959.13/805,466.40
  6. Step 6: Final answer
    x = 497,892.51

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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.