Home / 918,661.06-1,267,784.75-510,878.52

Finding the Fourth Proportional to 918,661.06, 1,267,784.75 and 510,878.52

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Solution

The fourth proportional to 918,661.06, 1,267,784.75 and 510,878.52 is: 705,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,661.06 : 1,267,784.75 = 510,878.52 : x
  2. Step 2: Convert to fraction form
    918,661.06/1,267,784.75 = 510,878.52/x
  3. Step 3: Cross multiply
    918,661.06x = 1,267,784.75 × 510,878.52
  4. Step 4: Simplify right side
    918,661.06x = 647,683,996,758.57
  5. Step 5: Solve for x
    x = 647,683,996,758.57/918,661.06
  6. Step 6: Final answer
    x = 705,030.42

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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.