Home / 879,089.50-1,213,144.14-476,681.50

Finding the Fourth Proportional to 879,089.50, 1,213,144.14 and 476,681.50

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Solution

The fourth proportional to 879,089.50, 1,213,144.14 and 476,681.50 is: 657,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,089.50 : 1,213,144.14 = 476,681.50 : x
  2. Step 2: Convert to fraction form
    879,089.50/1,213,144.14 = 476,681.50/x
  3. Step 3: Cross multiply
    879,089.50x = 1,213,144.14 × 476,681.50
  4. Step 4: Simplify right side
    879,089.50x = 578,283,368,371.41
  5. Step 5: Solve for x
    x = 578,283,368,371.41/879,089.50
  6. Step 6: Final answer
    x = 657,820.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.