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Finding the Fourth Proportional to 715,897.44, 988,088.73 and 454,083.47

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Solution

The fourth proportional to 715,897.44, 988,088.73 and 454,083.47 is: 626,730.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,897.44 : 988,088.73 = 454,083.47 : x
  2. Step 2: Convert to fraction form
    715,897.44/988,088.73 = 454,083.47/x
  3. Step 3: Cross multiply
    715,897.44x = 988,088.73 × 454,083.47
  4. Step 4: Simplify right side
    715,897.44x = 448,674,756,248.37
  5. Step 5: Solve for x
    x = 448,674,756,248.37/715,897.44
  6. Step 6: Final answer
    x = 626,730.49

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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.