Home / 1,012,109.32-1,396,686.54-553,203.28

Finding the Fourth Proportional to 1,012,109.32, 1,396,686.54 and 553,203.28

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Solution

The fourth proportional to 1,012,109.32, 1,396,686.54 and 553,203.28 is: 763,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,109.32 : 1,396,686.54 = 553,203.28 : x
  2. Step 2: Convert to fraction form
    1,012,109.32/1,396,686.54 = 553,203.28/x
  3. Step 3: Cross multiply
    1,012,109.32x = 1,396,686.54 × 553,203.28
  4. Step 4: Simplify right side
    1,012,109.32x = 772,651,575,059.85
  5. Step 5: Solve for x
    x = 772,651,575,059.85/1,012,109.32
  6. Step 6: Final answer
    x = 763,407.23

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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.