Home / 1,125,329.83-1,688,186.71-415,361.59

Finding the Fourth Proportional to 1,125,329.83, 1,688,186.71 and 415,361.59

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Solution

The fourth proportional to 1,125,329.83, 1,688,186.71 and 415,361.59 is: 623,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,329.83 : 1,688,186.71 = 415,361.59 : x
  2. Step 2: Convert to fraction form
    1,125,329.83/1,688,186.71 = 415,361.59/x
  3. Step 3: Cross multiply
    1,125,329.83x = 1,688,186.71 × 415,361.59
  4. Step 4: Simplify right side
    1,125,329.83x = 701,207,912,381.20
  5. Step 5: Solve for x
    x = 701,207,912,381.20/1,125,329.83
  6. Step 6: Final answer
    x = 623,113.24

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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.