Home / 916,384.40-1,375,232.70-384,287.30

Finding the Fourth Proportional to 916,384.40, 1,375,232.70 and 384,287.30

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Solution

The fourth proportional to 916,384.40, 1,375,232.70 and 384,287.30 is: 576,706.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,384.40 : 1,375,232.70 = 384,287.30 : x
  2. Step 2: Convert to fraction form
    916,384.40/1,375,232.70 = 384,287.30/x
  3. Step 3: Cross multiply
    916,384.40x = 1,375,232.70 × 384,287.30
  4. Step 4: Simplify right side
    916,384.40x = 528,484,461,154.71
  5. Step 5: Solve for x
    x = 528,484,461,154.71/916,384.40
  6. Step 6: Final answer
    x = 576,706.09

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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.