Home / 942,005.40-1,413,008.10-905,263.80

Finding the Fourth Proportional to 942,005.40, 1,413,008.10 and 905,263.80

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Solution

The fourth proportional to 942,005.40, 1,413,008.10 and 905,263.80 is: 1,357,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,005.40 : 1,413,008.10 = 905,263.80 : x
  2. Step 2: Convert to fraction form
    942,005.40/1,413,008.10 = 905,263.80/x
  3. Step 3: Cross multiply
    942,005.40x = 1,413,008.10 × 905,263.80
  4. Step 4: Simplify right side
    942,005.40x = 1,279,145,082,036.78
  5. Step 5: Solve for x
    x = 1,279,145,082,036.78/942,005.40
  6. Step 6: Final answer
    x = 1,357,895.70

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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.