Home / 805,444.40-1,208,312.28-331,866.32

Finding the Fourth Proportional to 805,444.40, 1,208,312.28 and 331,866.32

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Solution

The fourth proportional to 805,444.40, 1,208,312.28 and 331,866.32 is: 497,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,444.40 : 1,208,312.28 = 331,866.32 : x
  2. Step 2: Convert to fraction form
    805,444.40/1,208,312.28 = 331,866.32/x
  3. Step 3: Cross multiply
    805,444.40x = 1,208,312.28 × 331,866.32
  4. Step 4: Simplify right side
    805,444.40x = 400,998,149,774.41
  5. Step 5: Solve for x
    x = 400,998,149,774.41/805,444.40
  6. Step 6: Final answer
    x = 497,859.50

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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.