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Finding the Fourth Proportional to 530,692.02, 732,354.48 and 288,976.32

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Solution

The fourth proportional to 530,692.02, 732,354.48 and 288,976.32 is: 398,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,692.02 : 732,354.48 = 288,976.32 : x
  2. Step 2: Convert to fraction form
    530,692.02/732,354.48 = 288,976.32/x
  3. Step 3: Cross multiply
    530,692.02x = 732,354.48 × 288,976.32
  4. Step 4: Simplify right side
    530,692.02x = 211,633,102,565.91
  5. Step 5: Solve for x
    x = 211,633,102,565.91/530,692.02
  6. Step 6: Final answer
    x = 398,787.05

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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.