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Finding the Fourth Proportional to 458,776.85, 688,449.42 and 266,741.64

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Solution

The fourth proportional to 458,776.85, 688,449.42 and 266,741.64 is: 400,277.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,776.85 : 688,449.42 = 266,741.64 : x
  2. Step 2: Convert to fraction form
    458,776.85/688,449.42 = 266,741.64/x
  3. Step 3: Cross multiply
    458,776.85x = 688,449.42 × 266,741.64
  4. Step 4: Simplify right side
    458,776.85x = 183,638,127,347.85
  5. Step 5: Solve for x
    x = 183,638,127,347.85/458,776.85
  6. Step 6: Final answer
    x = 400,277.67

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1.5x scale

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.