Home / 1,386,347.40-2,076,021.90-910,456.20

Finding the Fourth Proportional to 1,386,347.40, 2,076,021.90 and 910,456.20

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Solution

The fourth proportional to 1,386,347.40, 2,076,021.90 and 910,456.20 is: 1,363,386.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,347.40 : 2,076,021.90 = 910,456.20 : x
  2. Step 2: Convert to fraction form
    1,386,347.40/2,076,021.90 = 910,456.20/x
  3. Step 3: Cross multiply
    1,386,347.40x = 2,076,021.90 × 910,456.20
  4. Step 4: Simplify right side
    1,386,347.40x = 1,890,127,010,190.78
  5. Step 5: Solve for x
    x = 1,890,127,010,190.78/1,386,347.40
  6. Step 6: Final answer
    x = 1,363,386.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.