Home / 1,161,953.63-1,603,461.12-645,705.80

Finding the Fourth Proportional to 1,161,953.63, 1,603,461.12 and 645,705.80

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Solution

The fourth proportional to 1,161,953.63, 1,603,461.12 and 645,705.80 is: 891,054.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,953.63 : 1,603,461.12 = 645,705.80 : x
  2. Step 2: Convert to fraction form
    1,161,953.63/1,603,461.12 = 645,705.80/x
  3. Step 3: Cross multiply
    1,161,953.63x = 1,603,461.12 × 645,705.80
  4. Step 4: Simplify right side
    1,161,953.63x = 1,035,364,145,258.50
  5. Step 5: Solve for x
    x = 1,035,364,145,258.50/1,161,953.63
  6. Step 6: Final answer
    x = 891,054.62

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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.