Home / 755,038.78-1,041,953.66-415,507.03

Finding the Fourth Proportional to 755,038.78, 1,041,953.66 and 415,507.03

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Solution

The fourth proportional to 755,038.78, 1,041,953.66 and 415,507.03 is: 573,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,038.78 : 1,041,953.66 = 415,507.03 : x
  2. Step 2: Convert to fraction form
    755,038.78/1,041,953.66 = 415,507.03/x
  3. Step 3: Cross multiply
    755,038.78x = 1,041,953.66 × 415,507.03
  4. Step 4: Simplify right side
    755,038.78x = 432,939,070,400.56
  5. Step 5: Solve for x
    x = 432,939,070,400.56/755,038.78
  6. Step 6: Final answer
    x = 573,399.78

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1.5x scale

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.