Home / 770,348.16-1,063,102.98-421,509.50

Finding the Fourth Proportional to 770,348.16, 1,063,102.98 and 421,509.50

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Solution

The fourth proportional to 770,348.16, 1,063,102.98 and 421,509.50 is: 581,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,348.16 : 1,063,102.98 = 421,509.50 : x
  2. Step 2: Convert to fraction form
    770,348.16/1,063,102.98 = 421,509.50/x
  3. Step 3: Cross multiply
    770,348.16x = 1,063,102.98 × 421,509.50
  4. Step 4: Simplify right side
    770,348.16x = 448,108,005,548.31
  5. Step 5: Solve for x
    x = 448,108,005,548.31/770,348.16
  6. Step 6: Final answer
    x = 581,695.43

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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.