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Finding the Fourth Proportional to 692,530.18, 955,692.57 and 390,752.26

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Solution

The fourth proportional to 692,530.18, 955,692.57 and 390,752.26 is: 539,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,530.18 : 955,692.57 = 390,752.26 : x
  2. Step 2: Convert to fraction form
    692,530.18/955,692.57 = 390,752.26/x
  3. Step 3: Cross multiply
    692,530.18x = 955,692.57 × 390,752.26
  4. Step 4: Simplify right side
    692,530.18x = 373,439,031,592.71
  5. Step 5: Solve for x
    x = 373,439,031,592.71/692,530.18
  6. Step 6: Final answer
    x = 539,238.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.