Home / 820,683.90-1,133,055.81-530,447.40

Finding the Fourth Proportional to 820,683.90, 1,133,055.81 and 530,447.40

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Solution

The fourth proportional to 820,683.90, 1,133,055.81 and 530,447.40 is: 732,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,683.90 : 1,133,055.81 = 530,447.40 : x
  2. Step 2: Convert to fraction form
    820,683.90/1,133,055.81 = 530,447.40/x
  3. Step 3: Cross multiply
    820,683.90x = 1,133,055.81 × 530,447.40
  4. Step 4: Simplify right side
    820,683.90x = 601,026,508,469.39
  5. Step 5: Solve for x
    x = 601,026,508,469.39/820,683.90
  6. Step 6: Final answer
    x = 732,348.36

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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.