Home / 987,018.35-1,362,089.67-534,309.35

Finding the Fourth Proportional to 987,018.35, 1,362,089.67 and 534,309.35

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Solution

The fourth proportional to 987,018.35, 1,362,089.67 and 534,309.35 is: 737,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,018.35 : 1,362,089.67 = 534,309.35 : x
  2. Step 2: Convert to fraction form
    987,018.35/1,362,089.67 = 534,309.35/x
  3. Step 3: Cross multiply
    987,018.35x = 1,362,089.67 × 534,309.35
  4. Step 4: Simplify right side
    987,018.35x = 727,777,246,219.41
  5. Step 5: Solve for x
    x = 727,777,246,219.41/987,018.35
  6. Step 6: Final answer
    x = 737,349.26

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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.