Home / 1,515,554.64-2,091,316.50-836,447.40

Finding the Fourth Proportional to 1,515,554.64, 2,091,316.50 and 836,447.40

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Solution

The fourth proportional to 1,515,554.64, 2,091,316.50 and 836,447.40 is: 1,154,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,554.64 : 2,091,316.50 = 836,447.40 : x
  2. Step 2: Convert to fraction form
    1,515,554.64/2,091,316.50 = 836,447.40/x
  3. Step 3: Cross multiply
    1,515,554.64x = 2,091,316.50 × 836,447.40
  4. Step 4: Simplify right side
    1,515,554.64x = 1,749,276,249,002.10
  5. Step 5: Solve for x
    x = 1,749,276,249,002.10/1,515,554.64
  6. Step 6: Final answer
    x = 1,154,215.23

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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.