Home / 691,802.20-1,037,703.30-218,535.40

Finding the Fourth Proportional to 691,802.20, 1,037,703.30 and 218,535.40

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Solution

The fourth proportional to 691,802.20, 1,037,703.30 and 218,535.40 is: 327,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,802.20 : 1,037,703.30 = 218,535.40 : x
  2. Step 2: Convert to fraction form
    691,802.20/1,037,703.30 = 218,535.40/x
  3. Step 3: Cross multiply
    691,802.20x = 1,037,703.30 × 218,535.40
  4. Step 4: Simplify right side
    691,802.20x = 226,774,905,746.82
  5. Step 5: Solve for x
    x = 226,774,905,746.82/691,802.20
  6. Step 6: Final answer
    x = 327,803.10

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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.