Home / 1,539,310.80-2,309,622.30-971,128.20

Finding the Fourth Proportional to 1,539,310.80, 2,309,622.30 and 971,128.20

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Solution

The fourth proportional to 1,539,310.80, 2,309,622.30 and 971,128.20 is: 1,457,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,310.80 : 2,309,622.30 = 971,128.20 : x
  2. Step 2: Convert to fraction form
    1,539,310.80/2,309,622.30 = 971,128.20/x
  3. Step 3: Cross multiply
    1,539,310.80x = 2,309,622.30 × 971,128.20
  4. Step 4: Simplify right side
    1,539,310.80x = 2,242,939,346,878.86
  5. Step 5: Solve for x
    x = 2,242,939,346,878.86/1,539,310.80
  6. Step 6: Final answer
    x = 1,457,106.22

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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.