Home / 1,565,714.90-2,160,649.95-921,176.57

Finding the Fourth Proportional to 1,565,714.90, 2,160,649.95 and 921,176.57

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Solution

The fourth proportional to 1,565,714.90, 2,160,649.95 and 921,176.57 is: 1,271,202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,714.90 : 2,160,649.95 = 921,176.57 : x
  2. Step 2: Convert to fraction form
    1,565,714.90/2,160,649.95 = 921,176.57/x
  3. Step 3: Cross multiply
    1,565,714.90x = 2,160,649.95 × 921,176.57
  4. Step 4: Simplify right side
    1,565,714.90x = 1,990,340,109,911.67
  5. Step 5: Solve for x
    x = 1,990,340,109,911.67/1,565,714.90
  6. Step 6: Final answer
    x = 1,271,202.13

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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.