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Finding the Fourth Proportional to 590,618.60, 885,323.10 and 290,637.80

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Solution

The fourth proportional to 590,618.60, 885,323.10 and 290,637.80 is: 435,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,618.60 : 885,323.10 = 290,637.80 : x
  2. Step 2: Convert to fraction form
    590,618.60/885,323.10 = 290,637.80/x
  3. Step 3: Cross multiply
    590,618.60x = 885,323.10 × 290,637.80
  4. Step 4: Simplify right side
    590,618.60x = 257,308,358,073.18
  5. Step 5: Solve for x
    x = 257,308,358,073.18/590,618.60
  6. Step 6: Final answer
    x = 435,659.08

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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.