Home / 1,500,520.63-2,070,718.41-821,457.13

Finding the Fourth Proportional to 1,500,520.63, 2,070,718.41 and 821,457.13

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Solution

The fourth proportional to 1,500,520.63, 2,070,718.41 and 821,457.13 is: 1,133,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,520.63 : 2,070,718.41 = 821,457.13 : x
  2. Step 2: Convert to fraction form
    1,500,520.63/2,070,718.41 = 821,457.13/x
  3. Step 3: Cross multiply
    1,500,520.63x = 2,070,718.41 × 821,457.13
  4. Step 4: Simplify right side
    1,500,520.63x = 1,701,006,402,116.76
  5. Step 5: Solve for x
    x = 1,701,006,402,116.76/1,500,520.63
  6. Step 6: Final answer
    x = 1,133,610.81

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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.