Home / 1,028,803.49-1,543,205.42-429,437.69

Finding the Fourth Proportional to 1,028,803.49, 1,543,205.42 and 429,437.69

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Solution

The fourth proportional to 1,028,803.49, 1,543,205.42 and 429,437.69 is: 644,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,803.49 : 1,543,205.42 = 429,437.69 : x
  2. Step 2: Convert to fraction form
    1,028,803.49/1,543,205.42 = 429,437.69/x
  3. Step 3: Cross multiply
    1,028,803.49x = 1,543,205.42 × 429,437.69
  4. Step 4: Simplify right side
    1,028,803.49x = 662,710,570,760.28
  5. Step 5: Solve for x
    x = 662,710,570,760.28/1,028,803.49
  6. Step 6: Final answer
    x = 644,156.61

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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.