Home / 702,714.53-1,054,491.75-645,543.11

Finding the Fourth Proportional to 702,714.53, 1,054,491.75 and 645,543.11

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Solution

The fourth proportional to 702,714.53, 1,054,491.75 and 645,543.11 is: 968,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,714.53 : 1,054,491.75 = 645,543.11 : x
  2. Step 2: Convert to fraction form
    702,714.53/1,054,491.75 = 645,543.11/x
  3. Step 3: Cross multiply
    702,714.53x = 1,054,491.75 × 645,543.11
  4. Step 4: Simplify right side
    702,714.53x = 680,719,886,400.57
  5. Step 5: Solve for x
    x = 680,719,886,400.57/702,714.53
  6. Step 6: Final answer
    x = 968,700.45

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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.