Home / 816,316.11-1,126,529.72-448,808.78

Finding the Fourth Proportional to 816,316.11, 1,126,529.72 and 448,808.78

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Solution

The fourth proportional to 816,316.11, 1,126,529.72 and 448,808.78 is: 619,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,316.11 : 1,126,529.72 = 448,808.78 : x
  2. Step 2: Convert to fraction form
    816,316.11/1,126,529.72 = 448,808.78/x
  3. Step 3: Cross multiply
    816,316.11x = 1,126,529.72 × 448,808.78
  4. Step 4: Simplify right side
    816,316.11x = 505,596,421,390.25
  5. Step 5: Solve for x
    x = 505,596,421,390.25/816,316.11
  6. Step 6: Final answer
    x = 619,363.52

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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.