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Finding the Fourth Proportional to 553,298.24, 763,564.58 and 308,299.56

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Solution

The fourth proportional to 553,298.24, 763,564.58 and 308,299.56 is: 425,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,298.24 : 763,564.58 = 308,299.56 : x
  2. Step 2: Convert to fraction form
    553,298.24/763,564.58 = 308,299.56/x
  3. Step 3: Cross multiply
    553,298.24x = 763,564.58 × 308,299.56
  4. Step 4: Simplify right side
    553,298.24x = 235,406,624,045.59
  5. Step 5: Solve for x
    x = 235,406,624,045.59/553,298.24
  6. Step 6: Final answer
    x = 425,460.64

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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.