Home / 1,011,135.72-1,395,358.74-558,417

Finding the Fourth Proportional to 1,011,135.72, 1,395,358.74 and 558,417

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Solution

The fourth proportional to 1,011,135.72, 1,395,358.74 and 558,417 is: 770,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,135.72 : 1,395,358.74 = 558,417 : x
  2. Step 2: Convert to fraction form
    1,011,135.72/1,395,358.74 = 558,417/x
  3. Step 3: Cross multiply
    1,011,135.72x = 1,395,358.74 × 558,417
  4. Step 4: Simplify right side
    1,011,135.72x = 779,192,041,514.58
  5. Step 5: Solve for x
    x = 779,192,041,514.58/1,011,135.72
  6. Step 6: Final answer
    x = 770,610.74

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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.