Home / 811,041.28-1,216,434.32-510,602.16

Finding the Fourth Proportional to 811,041.28, 1,216,434.32 and 510,602.16

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Solution

The fourth proportional to 811,041.28, 1,216,434.32 and 510,602.16 is: 765,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,041.28 : 1,216,434.32 = 510,602.16 : x
  2. Step 2: Convert to fraction form
    811,041.28/1,216,434.32 = 510,602.16/x
  3. Step 3: Cross multiply
    811,041.28x = 1,216,434.32 × 510,602.16
  4. Step 4: Simplify right side
    811,041.28x = 621,113,991,290.13
  5. Step 5: Solve for x
    x = 621,113,991,290.13/811,041.28
  6. Step 6: Final answer
    x = 765,822.91

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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.