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Finding the Fourth Proportional to 570,417.84, 787,182.84 and 315,773.28

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Solution

The fourth proportional to 570,417.84, 787,182.84 and 315,773.28 is: 435,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,417.84 : 787,182.84 = 315,773.28 : x
  2. Step 2: Convert to fraction form
    570,417.84/787,182.84 = 315,773.28/x
  3. Step 3: Cross multiply
    570,417.84x = 787,182.84 × 315,773.28
  4. Step 4: Simplify right side
    570,417.84x = 248,571,307,346.52
  5. Step 5: Solve for x
    x = 248,571,307,346.52/570,417.84
  6. Step 6: Final answer
    x = 435,770.57

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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.