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Finding the Fourth Proportional to 570,533.84, 787,361.31 and 315,885.03

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Solution

The fourth proportional to 570,533.84, 787,361.31 and 315,885.03 is: 435,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,533.84 : 787,361.31 = 315,885.03 : x
  2. Step 2: Convert to fraction form
    570,533.84/787,361.31 = 315,885.03/x
  3. Step 3: Cross multiply
    570,533.84x = 787,361.31 × 315,885.03
  4. Step 4: Simplify right side
    570,533.84x = 248,715,652,506.49
  5. Step 5: Solve for x
    x = 248,715,652,506.49/570,533.84
  6. Step 6: Final answer
    x = 435,934.97

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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.