Home / 877,135.61-1,314,643.80-427,182.23

Finding the Fourth Proportional to 877,135.61, 1,314,643.80 and 427,182.23

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Solution

The fourth proportional to 877,135.61, 1,314,643.80 and 427,182.23 is: 640,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,135.61 : 1,314,643.80 = 427,182.23 : x
  2. Step 2: Convert to fraction form
    877,135.61/1,314,643.80 = 427,182.23/x
  3. Step 3: Cross multiply
    877,135.61x = 1,314,643.80 × 427,182.23
  4. Step 4: Simplify right side
    877,135.61x = 561,592,470,139.67
  5. Step 5: Solve for x
    x = 561,592,470,139.67/877,135.61
  6. Step 6: Final answer
    x = 640,257.29

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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.