Home / 1,028,803.50-1,543,205.42-429,437.70

Finding the Fourth Proportional to 1,028,803.50, 1,543,205.42 and 429,437.70

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Solution

The fourth proportional to 1,028,803.50, 1,543,205.42 and 429,437.70 is: 644,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,803.50 : 1,543,205.42 = 429,437.70 : x
  2. Step 2: Convert to fraction form
    1,028,803.50/1,543,205.42 = 429,437.70/x
  3. Step 3: Cross multiply
    1,028,803.50x = 1,543,205.42 × 429,437.70
  4. Step 4: Simplify right side
    1,028,803.50x = 662,710,586,192.33
  5. Step 5: Solve for x
    x = 662,710,586,192.33/1,028,803.50
  6. Step 6: Final answer
    x = 644,156.62

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Double scale
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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.