Home / 839,290.18-1,259,307.38-439,835.98

Finding the Fourth Proportional to 839,290.18, 1,259,307.38 and 439,835.98

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Solution

The fourth proportional to 839,290.18, 1,259,307.38 and 439,835.98 is: 659,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,290.18 : 1,259,307.38 = 439,835.98 : x
  2. Step 2: Convert to fraction form
    839,290.18/1,259,307.38 = 439,835.98/x
  3. Step 3: Cross multiply
    839,290.18x = 1,259,307.38 × 439,835.98
  4. Step 4: Simplify right side
    839,290.18x = 553,888,695,603.53
  5. Step 5: Solve for x
    x = 553,888,695,603.53/839,290.18
  6. Step 6: Final answer
    x = 659,948.98

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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.