Home / 887,682.08-1,225,001.28-485,274.08

Finding the Fourth Proportional to 887,682.08, 1,225,001.28 and 485,274.08

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Solution

The fourth proportional to 887,682.08, 1,225,001.28 and 485,274.08 is: 669,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,682.08 : 1,225,001.28 = 485,274.08 : x
  2. Step 2: Convert to fraction form
    887,682.08/1,225,001.28 = 485,274.08/x
  3. Step 3: Cross multiply
    887,682.08x = 1,225,001.28 × 485,274.08
  4. Step 4: Simplify right side
    887,682.08x = 594,461,369,150.82
  5. Step 5: Solve for x
    x = 594,461,369,150.82/887,682.08
  6. Step 6: Final answer
    x = 669,678.24

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Double scale
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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.