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Finding the Fourth Proportional to 1,038,855, 1,430,422.32 and 885,549.54

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Solution

The fourth proportional to 1,038,855, 1,430,422.32 and 885,549.54 is: 1,219,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,855 : 1,430,422.32 = 885,549.54 : x
  2. Step 2: Convert to fraction form
    1,038,855/1,430,422.32 = 885,549.54/x
  3. Step 3: Cross multiply
    1,038,855x = 1,430,422.32 × 885,549.54
  4. Step 4: Simplify right side
    1,038,855x = 1,266,709,827,481.73
  5. Step 5: Solve for x
    x = 1,266,709,827,481.73/1,038,855
  6. Step 6: Final answer
    x = 1,219,332.66

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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.