Home / 1,007,688.48-1,390,546.89-554,979.48

Finding the Fourth Proportional to 1,007,688.48, 1,390,546.89 and 554,979.48

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Solution

The fourth proportional to 1,007,688.48, 1,390,546.89 and 554,979.48 is: 765,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,688.48 : 1,390,546.89 = 554,979.48 : x
  2. Step 2: Convert to fraction form
    1,007,688.48/1,390,546.89 = 554,979.48/x
  3. Step 3: Cross multiply
    1,007,688.48x = 1,390,546.89 × 554,979.48
  4. Step 4: Simplify right side
    1,007,688.48x = 771,724,989,927.82
  5. Step 5: Solve for x
    x = 771,724,989,927.82/1,007,688.48
  6. Step 6: Final answer
    x = 765,836.87

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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.