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Finding the Fourth Proportional to 610,389.51, 842,347.65 and 338,468.87

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Solution

The fourth proportional to 610,389.51, 842,347.65 and 338,468.87 is: 467,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,389.51 : 842,347.65 = 338,468.87 : x
  2. Step 2: Convert to fraction form
    610,389.51/842,347.65 = 338,468.87/x
  3. Step 3: Cross multiply
    610,389.51x = 842,347.65 × 338,468.87
  4. Step 4: Simplify right side
    610,389.51x = 285,108,453,030.92
  5. Step 5: Solve for x
    x = 285,108,453,030.92/610,389.51
  6. Step 6: Final answer
    x = 467,092.65

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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.