Home / 985,588.02-1,478,541.78-386,224.20

Finding the Fourth Proportional to 985,588.02, 1,478,541.78 and 386,224.20

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Solution

The fourth proportional to 985,588.02, 1,478,541.78 and 386,224.20 is: 579,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,588.02 : 1,478,541.78 = 386,224.20 : x
  2. Step 2: Convert to fraction form
    985,588.02/1,478,541.78 = 386,224.20/x
  3. Step 3: Cross multiply
    985,588.02x = 1,478,541.78 × 386,224.20
  4. Step 4: Simplify right side
    985,588.02x = 571,048,616,147.08
  5. Step 5: Solve for x
    x = 571,048,616,147.08/985,588.02
  6. Step 6: Final answer
    x = 579,398.90

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1.5x scale

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.