Home / 909,337.20-1,364,005.56-310,298.32

Finding the Fourth Proportional to 909,337.20, 1,364,005.56 and 310,298.32

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Solution

The fourth proportional to 909,337.20, 1,364,005.56 and 310,298.32 is: 465,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,337.20 : 1,364,005.56 = 310,298.32 : x
  2. Step 2: Convert to fraction form
    909,337.20/1,364,005.56 = 310,298.32/x
  3. Step 3: Cross multiply
    909,337.20x = 1,364,005.56 × 310,298.32
  4. Step 4: Simplify right side
    909,337.20x = 423,248,633,738.66
  5. Step 5: Solve for x
    x = 423,248,633,738.66/909,337.20
  6. Step 6: Final answer
    x = 465,447.40

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Double scale
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Similar ratio
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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.