Home / 811,240.43-1,119,501.81-448,657.70

Finding the Fourth Proportional to 811,240.43, 1,119,501.81 and 448,657.70

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Solution

The fourth proportional to 811,240.43, 1,119,501.81 and 448,657.70 is: 619,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,240.43 : 1,119,501.81 = 448,657.70 : x
  2. Step 2: Convert to fraction form
    811,240.43/1,119,501.81 = 448,657.70/x
  3. Step 3: Cross multiply
    811,240.43x = 1,119,501.81 × 448,657.70
  4. Step 4: Simplify right side
    811,240.43x = 502,273,101,622.93
  5. Step 5: Solve for x
    x = 502,273,101,622.93/811,240.43
  6. Step 6: Final answer
    x = 619,142.10

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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.