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Finding the Fourth Proportional to 811,457.02, 1,119,790.47 and 448,901.02

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Solution

The fourth proportional to 811,457.02, 1,119,790.47 and 448,901.02 is: 619,472.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,457.02 : 1,119,790.47 = 448,901.02 : x
  2. Step 2: Convert to fraction form
    811,457.02/1,119,790.47 = 448,901.02/x
  3. Step 3: Cross multiply
    811,457.02x = 1,119,790.47 × 448,901.02
  4. Step 4: Simplify right side
    811,457.02x = 502,675,084,169.28
  5. Step 5: Solve for x
    x = 502,675,084,169.28/811,457.02
  6. Step 6: Final answer
    x = 619,472.22

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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.