Home / 917,816.78-1,266,512.88-530,657.03

Finding the Fourth Proportional to 917,816.78, 1,266,512.88 and 530,657.03

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Solution

The fourth proportional to 917,816.78, 1,266,512.88 and 530,657.03 is: 732,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,816.78 : 1,266,512.88 = 530,657.03 : x
  2. Step 2: Convert to fraction form
    917,816.78/1,266,512.88 = 530,657.03/x
  3. Step 3: Cross multiply
    917,816.78x = 1,266,512.88 × 530,657.03
  4. Step 4: Simplify right side
    917,816.78x = 672,083,957,024.98
  5. Step 5: Solve for x
    x = 672,083,957,024.98/917,816.78
  6. Step 6: Final answer
    x = 732,263.75

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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.