Home / 897,427.80-1,346,141.70-328,807.80

Finding the Fourth Proportional to 897,427.80, 1,346,141.70 and 328,807.80

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Solution

The fourth proportional to 897,427.80, 1,346,141.70 and 328,807.80 is: 493,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,427.80 : 1,346,141.70 = 328,807.80 : x
  2. Step 2: Convert to fraction form
    897,427.80/1,346,141.70 = 328,807.80/x
  3. Step 3: Cross multiply
    897,427.80x = 1,346,141.70 × 328,807.80
  4. Step 4: Simplify right side
    897,427.80x = 442,621,890,865.26
  5. Step 5: Solve for x
    x = 442,621,890,865.26/897,427.80
  6. Step 6: Final answer
    x = 493,211.70

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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.