Home / 817,287.67-1,127,828.58-449,730.46

Finding the Fourth Proportional to 817,287.67, 1,127,828.58 and 449,730.46

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Solution

The fourth proportional to 817,287.67, 1,127,828.58 and 449,730.46 is: 620,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,287.67 : 1,127,828.58 = 449,730.46 : x
  2. Step 2: Convert to fraction form
    817,287.67/1,127,828.58 = 449,730.46/x
  3. Step 3: Cross multiply
    817,287.67x = 1,127,828.58 × 449,730.46
  4. Step 4: Simplify right side
    817,287.67x = 507,218,860,445.40
  5. Step 5: Solve for x
    x = 507,218,860,445.40/817,287.67
  6. Step 6: Final answer
    x = 620,612.40

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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.