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Finding the Fourth Proportional to 570,603.25, 787,431.21 and 328,884.16

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Solution

The fourth proportional to 570,603.25, 787,431.21 and 328,884.16 is: 453,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,603.25 : 787,431.21 = 328,884.16 : x
  2. Step 2: Convert to fraction form
    570,603.25/787,431.21 = 328,884.16/x
  3. Step 3: Cross multiply
    570,603.25x = 787,431.21 × 328,884.16
  4. Step 4: Simplify right side
    570,603.25x = 258,973,652,058.63
  5. Step 5: Solve for x
    x = 258,973,652,058.63/570,603.25
  6. Step 6: Final answer
    x = 453,859.41

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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.