Home / 551,922.40-761,643.84-306,897.40

Finding the Fourth Proportional to 551,922.40, 761,643.84 and 306,897.40

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Solution

The fourth proportional to 551,922.40, 761,643.84 and 306,897.40 is: 423,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,922.40 : 761,643.84 = 306,897.40 : x
  2. Step 2: Convert to fraction form
    551,922.40/761,643.84 = 306,897.40/x
  3. Step 3: Cross multiply
    551,922.40x = 761,643.84 × 306,897.40
  4. Step 4: Simplify right side
    551,922.40x = 233,746,514,222.02
  5. Step 5: Solve for x
    x = 233,746,514,222.02/551,922.40
  6. Step 6: Final answer
    x = 423,513.37

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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.