Home / 820,622.32-1,133,058.68-530,405.60

Finding the Fourth Proportional to 820,622.32, 1,133,058.68 and 530,405.60

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Solution

The fourth proportional to 820,622.32, 1,133,058.68 and 530,405.60 is: 732,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,622.32 : 1,133,058.68 = 530,405.60 : x
  2. Step 2: Convert to fraction form
    820,622.32/1,133,058.68 = 530,405.60/x
  3. Step 3: Cross multiply
    820,622.32x = 1,133,058.68 × 530,405.60
  4. Step 4: Simplify right side
    820,622.32x = 600,980,669,000.61
  5. Step 5: Solve for x
    x = 600,980,669,000.61/820,622.32
  6. Step 6: Final answer
    x = 732,347.46

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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.