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Finding the Fourth Proportional to 559,477.44, 772,078.40 and 304,830.72

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Solution

The fourth proportional to 559,477.44, 772,078.40 and 304,830.72 is: 420,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,477.44 : 772,078.40 = 304,830.72 : x
  2. Step 2: Convert to fraction form
    559,477.44/772,078.40 = 304,830.72/x
  3. Step 3: Cross multiply
    559,477.44x = 772,078.40 × 304,830.72
  4. Step 4: Simplify right side
    559,477.44x = 235,353,214,568.45
  5. Step 5: Solve for x
    x = 235,353,214,568.45/559,477.44
  6. Step 6: Final answer
    x = 420,666.14

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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.