Home / 1,076,878.20-1,615,187.70-445,726.20

Finding the Fourth Proportional to 1,076,878.20, 1,615,187.70 and 445,726.20

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Solution

The fourth proportional to 1,076,878.20, 1,615,187.70 and 445,726.20 is: 668,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,878.20 : 1,615,187.70 = 445,726.20 : x
  2. Step 2: Convert to fraction form
    1,076,878.20/1,615,187.70 = 445,726.20/x
  3. Step 3: Cross multiply
    1,076,878.20x = 1,615,187.70 × 445,726.20
  4. Step 4: Simplify right side
    1,076,878.20x = 719,931,475,807.74
  5. Step 5: Solve for x
    x = 719,931,475,807.74/1,076,878.20
  6. Step 6: Final answer
    x = 668,535.66

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1.5x scale

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.