Home / 868,742.20-1,303,113.30-470,161.45

Finding the Fourth Proportional to 868,742.20, 1,303,113.30 and 470,161.45

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Solution

The fourth proportional to 868,742.20, 1,303,113.30 and 470,161.45 is: 705,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,742.20 : 1,303,113.30 = 470,161.45 : x
  2. Step 2: Convert to fraction form
    868,742.20/1,303,113.30 = 470,161.45/x
  3. Step 3: Cross multiply
    868,742.20x = 1,303,113.30 × 470,161.45
  4. Step 4: Simplify right side
    868,742.20x = 612,673,638,642.29
  5. Step 5: Solve for x
    x = 612,673,638,642.29/868,742.20
  6. Step 6: Final answer
    x = 705,242.18

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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.