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Finding the Fourth Proportional to 585,897.60, 808,538.40 and 317,625.60

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Solution

The fourth proportional to 585,897.60, 808,538.40 and 317,625.60 is: 438,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,897.60 : 808,538.40 = 317,625.60 : x
  2. Step 2: Convert to fraction form
    585,897.60/808,538.40 = 317,625.60/x
  3. Step 3: Cross multiply
    585,897.60x = 808,538.40 × 317,625.60
  4. Step 4: Simplify right side
    585,897.60x = 256,812,494,423.04
  5. Step 5: Solve for x
    x = 256,812,494,423.04/585,897.60
  6. Step 6: Final answer
    x = 438,323.17

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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.