Home / 1,021,979.61-1,410,333.19-556,831.28

Finding the Fourth Proportional to 1,021,979.61, 1,410,333.19 and 556,831.28

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Solution

The fourth proportional to 1,021,979.61, 1,410,333.19 and 556,831.28 is: 768,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,979.61 : 1,410,333.19 = 556,831.28 : x
  2. Step 2: Convert to fraction form
    1,021,979.61/1,410,333.19 = 556,831.28/x
  3. Step 3: Cross multiply
    1,021,979.61x = 1,410,333.19 × 556,831.28
  4. Step 4: Simplify right side
    1,021,979.61x = 785,317,637,547.94
  5. Step 5: Solve for x
    x = 785,317,637,547.94/1,021,979.61
  6. Step 6: Final answer
    x = 768,427.89

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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.