Home / 1,378,911.77-2,068,368.26-432,356.30

Finding the Fourth Proportional to 1,378,911.77, 2,068,368.26 and 432,356.30

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Solution

The fourth proportional to 1,378,911.77, 2,068,368.26 and 432,356.30 is: 648,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,911.77 : 2,068,368.26 = 432,356.30 : x
  2. Step 2: Convert to fraction form
    1,378,911.77/2,068,368.26 = 432,356.30/x
  3. Step 3: Cross multiply
    1,378,911.77x = 2,068,368.26 × 432,356.30
  4. Step 4: Simplify right side
    1,378,911.77x = 894,272,047,931.04
  5. Step 5: Solve for x
    x = 894,272,047,931.04/1,378,911.77
  6. Step 6: Final answer
    x = 648,534.64

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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.