Home / 1,137,729.60-1,706,133.60-389,390.40

Finding the Fourth Proportional to 1,137,729.60, 1,706,133.60 and 389,390.40

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Solution

The fourth proportional to 1,137,729.60, 1,706,133.60 and 389,390.40 is: 583,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,729.60 : 1,706,133.60 = 389,390.40 : x
  2. Step 2: Convert to fraction form
    1,137,729.60/1,706,133.60 = 389,390.40/x
  3. Step 3: Cross multiply
    1,137,729.60x = 1,706,133.60 × 389,390.40
  4. Step 4: Simplify right side
    1,137,729.60x = 664,352,044,957.44
  5. Step 5: Solve for x
    x = 664,352,044,957.44/1,137,729.60
  6. Step 6: Final answer
    x = 583,927.89

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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.