Home / 877,400.10-1,317,084.30-678,601.80

Finding the Fourth Proportional to 877,400.10, 1,317,084.30 and 678,601.80

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Solution

The fourth proportional to 877,400.10, 1,317,084.30 and 678,601.80 is: 1,018,663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,400.10 : 1,317,084.30 = 678,601.80 : x
  2. Step 2: Convert to fraction form
    877,400.10/1,317,084.30 = 678,601.80/x
  3. Step 3: Cross multiply
    877,400.10x = 1,317,084.30 × 678,601.80
  4. Step 4: Simplify right side
    877,400.10x = 893,775,776,731.74
  5. Step 5: Solve for x
    x = 893,775,776,731.74/877,400.10
  6. Step 6: Final answer
    x = 1,018,663.86

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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.