Home / 716,742.10-1,075,111.85-491,419.44

Finding the Fourth Proportional to 716,742.10, 1,075,111.85 and 491,419.44

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Solution

The fourth proportional to 716,742.10, 1,075,111.85 and 491,419.44 is: 737,128.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,742.10 : 1,075,111.85 = 491,419.44 : x
  2. Step 2: Convert to fraction form
    716,742.10/1,075,111.85 = 491,419.44/x
  3. Step 3: Cross multiply
    716,742.10x = 1,075,111.85 × 491,419.44
  4. Step 4: Simplify right side
    716,742.10x = 528,330,864,492.91
  5. Step 5: Solve for x
    x = 528,330,864,492.91/716,742.10
  6. Step 6: Final answer
    x = 737,128.27

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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.