Home / 1,018,108.18-1,404,950.79-565,428.34

Finding the Fourth Proportional to 1,018,108.18, 1,404,950.79 and 565,428.34

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Solution

The fourth proportional to 1,018,108.18, 1,404,950.79 and 565,428.34 is: 780,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,108.18 : 1,404,950.79 = 565,428.34 : x
  2. Step 2: Convert to fraction form
    1,018,108.18/1,404,950.79 = 565,428.34/x
  3. Step 3: Cross multiply
    1,018,108.18x = 1,404,950.79 × 565,428.34
  4. Step 4: Simplify right side
    1,018,108.18x = 794,398,991,579.37
  5. Step 5: Solve for x
    x = 794,398,991,579.37/1,018,108.18
  6. Step 6: Final answer
    x = 780,269.73

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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.