Home / 819,270.40-1,130,598.72-456,717.28

Finding the Fourth Proportional to 819,270.40, 1,130,598.72 and 456,717.28

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Solution

The fourth proportional to 819,270.40, 1,130,598.72 and 456,717.28 is: 630,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,270.40 : 1,130,598.72 = 456,717.28 : x
  2. Step 2: Convert to fraction form
    819,270.40/1,130,598.72 = 456,717.28/x
  3. Step 3: Cross multiply
    819,270.40x = 1,130,598.72 × 456,717.28
  4. Step 4: Simplify right side
    819,270.40x = 516,363,972,169.88
  5. Step 5: Solve for x
    x = 516,363,972,169.88/819,270.40
  6. Step 6: Final answer
    x = 630,272.95

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1.5x scale

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.