Home / 1,137,169-1,705,762.14-389,221.48

Finding the Fourth Proportional to 1,137,169, 1,705,762.14 and 389,221.48

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Solution

The fourth proportional to 1,137,169, 1,705,762.14 and 389,221.48 is: 583,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,169 : 1,705,762.14 = 389,221.48 : x
  2. Step 2: Convert to fraction form
    1,137,169/1,705,762.14 = 389,221.48/x
  3. Step 3: Cross multiply
    1,137,169x = 1,705,762.14 × 389,221.48
  4. Step 4: Simplify right side
    1,137,169x = 663,919,264,658.77
  5. Step 5: Solve for x
    x = 663,919,264,658.77/1,137,169
  6. Step 6: Final answer
    x = 583,835.18

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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.