Home / 985,664.16-1,478,655.72-386,300.28

Finding the Fourth Proportional to 985,664.16, 1,478,655.72 and 386,300.28

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Solution

The fourth proportional to 985,664.16, 1,478,655.72 and 386,300.28 is: 579,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,664.16 : 1,478,655.72 = 386,300.28 : x
  2. Step 2: Convert to fraction form
    985,664.16/1,478,655.72 = 386,300.28/x
  3. Step 3: Cross multiply
    985,664.16x = 1,478,655.72 × 386,300.28
  4. Step 4: Simplify right side
    985,664.16x = 571,205,118,659.60
  5. Step 5: Solve for x
    x = 571,205,118,659.60/985,664.16
  6. Step 6: Final answer
    x = 579,512.92

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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.