Home / 817,636.64-1,226,460.54-312,061.28

Finding the Fourth Proportional to 817,636.64, 1,226,460.54 and 312,061.28

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Solution

The fourth proportional to 817,636.64, 1,226,460.54 and 312,061.28 is: 468,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,636.64 : 1,226,460.54 = 312,061.28 : x
  2. Step 2: Convert to fraction form
    817,636.64/1,226,460.54 = 312,061.28/x
  3. Step 3: Cross multiply
    817,636.64x = 1,226,460.54 × 312,061.28
  4. Step 4: Simplify right side
    817,636.64x = 382,730,845,981.89
  5. Step 5: Solve for x
    x = 382,730,845,981.89/817,636.64
  6. Step 6: Final answer
    x = 468,094.05

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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.