Home / 1,085,714.28-1,627,808.40-478,214.28

Finding the Fourth Proportional to 1,085,714.28, 1,627,808.40 and 478,214.28

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Solution

The fourth proportional to 1,085,714.28, 1,627,808.40 and 478,214.28 is: 716,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,714.28 : 1,627,808.40 = 478,214.28 : x
  2. Step 2: Convert to fraction form
    1,085,714.28/1,627,808.40 = 478,214.28/x
  3. Step 3: Cross multiply
    1,085,714.28x = 1,627,808.40 × 478,214.28
  4. Step 4: Simplify right side
    1,085,714.28x = 778,441,221,983.95
  5. Step 5: Solve for x
    x = 778,441,221,983.95/1,085,714.28
  6. Step 6: Final answer
    x = 716,985.34

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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.