Home / 559,228.20-771,815.42-404,681.28

Finding the Fourth Proportional to 559,228.20, 771,815.42 and 404,681.28

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Solution

The fourth proportional to 559,228.20, 771,815.42 and 404,681.28 is: 558,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,228.20 : 771,815.42 = 404,681.28 : x
  2. Step 2: Convert to fraction form
    559,228.20/771,815.42 = 404,681.28/x
  3. Step 3: Cross multiply
    559,228.20x = 771,815.42 × 404,681.28
  4. Step 4: Simplify right side
    559,228.20x = 312,339,253,030.64
  5. Step 5: Solve for x
    x = 312,339,253,030.64/559,228.20
  6. Step 6: Final answer
    x = 558,518.42

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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.