Home / 1,020,456.69-1,407,913.21-578,858.50

Finding the Fourth Proportional to 1,020,456.69, 1,407,913.21 and 578,858.50

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Solution

The fourth proportional to 1,020,456.69, 1,407,913.21 and 578,858.50 is: 798,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,456.69 : 1,407,913.21 = 578,858.50 : x
  2. Step 2: Convert to fraction form
    1,020,456.69/1,407,913.21 = 578,858.50/x
  3. Step 3: Cross multiply
    1,020,456.69x = 1,407,913.21 × 578,858.50
  4. Step 4: Simplify right side
    1,020,456.69x = 814,982,518,936.93
  5. Step 5: Solve for x
    x = 814,982,518,936.93/1,020,456.69
  6. Step 6: Final answer
    x = 798,644.89

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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.