Home / 817,359.52-1,127,927.84-449,802.40

Finding the Fourth Proportional to 817,359.52, 1,127,927.84 and 449,802.40

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Solution

The fourth proportional to 817,359.52, 1,127,927.84 and 449,802.40 is: 620,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,359.52 : 1,127,927.84 = 449,802.40 : x
  2. Step 2: Convert to fraction form
    817,359.52/1,127,927.84 = 449,802.40/x
  3. Step 3: Cross multiply
    817,359.52x = 1,127,927.84 × 449,802.40
  4. Step 4: Simplify right side
    817,359.52x = 507,344,649,458.82
  5. Step 5: Solve for x
    x = 507,344,649,458.82/817,359.52
  6. Step 6: Final answer
    x = 620,711.74

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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.