Home / 810,419.20-1,118,421.56-466,307.42

Finding the Fourth Proportional to 810,419.20, 1,118,421.56 and 466,307.42

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Solution

The fourth proportional to 810,419.20, 1,118,421.56 and 466,307.42 is: 643,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,419.20 : 1,118,421.56 = 466,307.42 : x
  2. Step 2: Convert to fraction form
    810,419.20/1,118,421.56 = 466,307.42/x
  3. Step 3: Cross multiply
    810,419.20x = 1,118,421.56 × 466,307.42
  4. Step 4: Simplify right side
    810,419.20x = 521,528,272,115.98
  5. Step 5: Solve for x
    x = 521,528,272,115.98/810,419.20
  6. Step 6: Final answer
    x = 643,529.02

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Double scale
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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.