Home / 899,081.53-1,240,756.90-536,715.79

Finding the Fourth Proportional to 899,081.53, 1,240,756.90 and 536,715.79

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Solution

The fourth proportional to 899,081.53, 1,240,756.90 and 536,715.79 is: 740,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,081.53 : 1,240,756.90 = 536,715.79 : x
  2. Step 2: Convert to fraction form
    899,081.53/1,240,756.90 = 536,715.79/x
  3. Step 3: Cross multiply
    899,081.53x = 1,240,756.90 × 536,715.79
  4. Step 4: Simplify right side
    899,081.53x = 665,933,819,781.45
  5. Step 5: Solve for x
    x = 665,933,819,781.45/899,081.53
  6. Step 6: Final answer
    x = 740,682.35

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Double scale
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Similar ratio
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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.