Home / 1,386,378.90-2,076,069.15-910,487.70

Finding the Fourth Proportional to 1,386,378.90, 2,076,069.15 and 910,487.70

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Solution

The fourth proportional to 1,386,378.90, 2,076,069.15 and 910,487.70 is: 1,363,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,378.90 : 2,076,069.15 = 910,487.70 : x
  2. Step 2: Convert to fraction form
    1,386,378.90/2,076,069.15 = 910,487.70/x
  3. Step 3: Cross multiply
    1,386,378.90x = 2,076,069.15 × 910,487.70
  4. Step 4: Simplify right side
    1,386,378.90x = 1,890,235,425,424.45
  5. Step 5: Solve for x
    x = 1,890,235,425,424.45/1,386,378.90
  6. Step 6: Final answer
    x = 1,363,433.49

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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.