Home / 718,741.65-1,077,078.81-494,355.45

Finding the Fourth Proportional to 718,741.65, 1,077,078.81 and 494,355.45

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Solution

The fourth proportional to 718,741.65, 1,077,078.81 and 494,355.45 is: 740,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,741.65 : 1,077,078.81 = 494,355.45 : x
  2. Step 2: Convert to fraction form
    718,741.65/1,077,078.81 = 494,355.45/x
  3. Step 3: Cross multiply
    718,741.65x = 1,077,078.81 × 494,355.45
  4. Step 4: Simplify right side
    718,741.65x = 532,459,779,803.02
  5. Step 5: Solve for x
    x = 532,459,779,803.02/718,741.65
  6. Step 6: Final answer
    x = 740,822.21

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1.5x scale

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.