Home / 819,130.48-1,130,405.31-456,577.32

Finding the Fourth Proportional to 819,130.48, 1,130,405.31 and 456,577.32

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Solution

The fourth proportional to 819,130.48, 1,130,405.31 and 456,577.32 is: 630,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,130.48 : 1,130,405.31 = 456,577.32 : x
  2. Step 2: Convert to fraction form
    819,130.48/1,130,405.31 = 456,577.32/x
  3. Step 3: Cross multiply
    819,130.48x = 1,130,405.31 × 456,577.32
  4. Step 4: Simplify right side
    819,130.48x = 516,117,426,953.57
  5. Step 5: Solve for x
    x = 516,117,426,953.57/819,130.48
  6. Step 6: Final answer
    x = 630,079.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.