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Finding the Fourth Proportional to 705,521.24, 972,692.85 and 509,122.91

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Solution

The fourth proportional to 705,521.24, 972,692.85 and 509,122.91 is: 701,921.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,521.24 : 972,692.85 = 509,122.91 : x
  2. Step 2: Convert to fraction form
    705,521.24/972,692.85 = 509,122.91/x
  3. Step 3: Cross multiply
    705,521.24x = 972,692.85 × 509,122.91
  4. Step 4: Simplify right side
    705,521.24x = 495,220,214,328.19
  5. Step 5: Solve for x
    x = 495,220,214,328.19/705,521.24
  6. Step 6: Final answer
    x = 701,921.06

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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.