Home / 749,405.21-1,034,153.60-427,219.16

Finding the Fourth Proportional to 749,405.21, 1,034,153.60 and 427,219.16

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Solution

The fourth proportional to 749,405.21, 1,034,153.60 and 427,219.16 is: 589,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,405.21 : 1,034,153.60 = 427,219.16 : x
  2. Step 2: Convert to fraction form
    749,405.21/1,034,153.60 = 427,219.16/x
  3. Step 3: Cross multiply
    749,405.21x = 1,034,153.60 × 427,219.16
  4. Step 4: Simplify right side
    749,405.21x = 441,810,224,996.11
  5. Step 5: Solve for x
    x = 441,810,224,996.11/749,405.21
  6. Step 6: Final answer
    x = 589,547.85

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1.5x scale

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.