Home / 756,384.40-1,134,576.60-423,917.20

Finding the Fourth Proportional to 756,384.40, 1,134,576.60 and 423,917.20

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Solution

The fourth proportional to 756,384.40, 1,134,576.60 and 423,917.20 is: 635,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,384.40 : 1,134,576.60 = 423,917.20 : x
  2. Step 2: Convert to fraction form
    756,384.40/1,134,576.60 = 423,917.20/x
  3. Step 3: Cross multiply
    756,384.40x = 1,134,576.60 × 423,917.20
  4. Step 4: Simplify right side
    756,384.40x = 480,966,535,457.52
  5. Step 5: Solve for x
    x = 480,966,535,457.52/756,384.40
  6. Step 6: Final answer
    x = 635,875.80

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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.