Home / 885,889.74-1,329,028.40-286,911.45

Finding the Fourth Proportional to 885,889.74, 1,329,028.40 and 286,911.45

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Solution

The fourth proportional to 885,889.74, 1,329,028.40 and 286,911.45 is: 430,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,889.74 : 1,329,028.40 = 286,911.45 : x
  2. Step 2: Convert to fraction form
    885,889.74/1,329,028.40 = 286,911.45/x
  3. Step 3: Cross multiply
    885,889.74x = 1,329,028.40 × 286,911.45
  4. Step 4: Simplify right side
    885,889.74x = 381,313,462,729.89
  5. Step 5: Solve for x
    x = 381,313,462,729.89/885,889.74
  6. Step 6: Final answer
    x = 430,429.93

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Double scale
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1.5x scale

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.