Home / 1,500,214.61-2,070,302.76-811,886.57

Finding the Fourth Proportional to 1,500,214.61, 2,070,302.76 and 811,886.57

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Solution

The fourth proportional to 1,500,214.61, 2,070,302.76 and 811,886.57 is: 1,120,407.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,214.61 : 2,070,302.76 = 811,886.57 : x
  2. Step 2: Convert to fraction form
    1,500,214.61/2,070,302.76 = 811,886.57/x
  3. Step 3: Cross multiply
    1,500,214.61x = 2,070,302.76 × 811,886.57
  4. Step 4: Simplify right side
    1,500,214.61x = 1,680,851,004,090.05
  5. Step 5: Solve for x
    x = 1,680,851,004,090.05/1,500,214.61
  6. Step 6: Final answer
    x = 1,120,407.03

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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.