Home / 855,692.88-1,180,485.36-515,972.40

Finding the Fourth Proportional to 855,692.88, 1,180,485.36 and 515,972.40

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Solution

The fourth proportional to 855,692.88, 1,180,485.36 and 515,972.40 is: 711,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,692.88 : 1,180,485.36 = 515,972.40 : x
  2. Step 2: Convert to fraction form
    855,692.88/1,180,485.36 = 515,972.40/x
  3. Step 3: Cross multiply
    855,692.88x = 1,180,485.36 × 515,972.40
  4. Step 4: Simplify right side
    855,692.88x = 609,097,864,364.06
  5. Step 5: Solve for x
    x = 609,097,864,364.06/855,692.88
  6. Step 6: Final answer
    x = 711,818.32

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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.