Home / 670,810.14-1,006,215.21-459,808.38

Finding the Fourth Proportional to 670,810.14, 1,006,215.21 and 459,808.38

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Solution

The fourth proportional to 670,810.14, 1,006,215.21 and 459,808.38 is: 689,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,810.14 : 1,006,215.21 = 459,808.38 : x
  2. Step 2: Convert to fraction form
    670,810.14/1,006,215.21 = 459,808.38/x
  3. Step 3: Cross multiply
    670,810.14x = 1,006,215.21 × 459,808.38
  4. Step 4: Simplify right side
    670,810.14x = 462,666,185,641.46
  5. Step 5: Solve for x
    x = 462,666,185,641.46/670,810.14
  6. Step 6: Final answer
    x = 689,712.57

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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.