Home / 877,745.16-1,316,663.10-278,753.40

Finding the Fourth Proportional to 877,745.16, 1,316,663.10 and 278,753.40

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Solution

The fourth proportional to 877,745.16, 1,316,663.10 and 278,753.40 is: 418,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,745.16 : 1,316,663.10 = 278,753.40 : x
  2. Step 2: Convert to fraction form
    877,745.16/1,316,663.10 = 278,753.40/x
  3. Step 3: Cross multiply
    877,745.16x = 1,316,663.10 × 278,753.40
  4. Step 4: Simplify right side
    877,745.16x = 367,024,315,779.54
  5. Step 5: Solve for x
    x = 367,024,315,779.54/877,745.16
  6. Step 6: Final answer
    x = 418,144.51

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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.