Home / 874,887.40-1,312,331.10-558,404.20

Finding the Fourth Proportional to 874,887.40, 1,312,331.10 and 558,404.20

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Solution

The fourth proportional to 874,887.40, 1,312,331.10 and 558,404.20 is: 837,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,887.40 : 1,312,331.10 = 558,404.20 : x
  2. Step 2: Convert to fraction form
    874,887.40/1,312,331.10 = 558,404.20/x
  3. Step 3: Cross multiply
    874,887.40x = 1,312,331.10 × 558,404.20
  4. Step 4: Simplify right side
    874,887.40x = 732,811,198,030.62
  5. Step 5: Solve for x
    x = 732,811,198,030.62/874,887.40
  6. Step 6: Final answer
    x = 837,606.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.