Home / 779,462.40-1,075,748.86-648,408.54

Finding the Fourth Proportional to 779,462.40, 1,075,748.86 and 648,408.54

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Solution

The fourth proportional to 779,462.40, 1,075,748.86 and 648,408.54 is: 894,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,462.40 : 1,075,748.86 = 648,408.54 : x
  2. Step 2: Convert to fraction form
    779,462.40/1,075,748.86 = 648,408.54/x
  3. Step 3: Cross multiply
    779,462.40x = 1,075,748.86 × 648,408.54
  4. Step 4: Simplify right side
    779,462.40x = 697,524,747,719.27
  5. Step 5: Solve for x
    x = 697,524,747,719.27/779,462.40
  6. Step 6: Final answer
    x = 894,879.28

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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.