Home / 916,373.40-1,375,216.20-384,276.30

Finding the Fourth Proportional to 916,373.40, 1,375,216.20 and 384,276.30

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Solution

The fourth proportional to 916,373.40, 1,375,216.20 and 384,276.30 is: 576,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,373.40 : 1,375,216.20 = 384,276.30 : x
  2. Step 2: Convert to fraction form
    916,373.40/1,375,216.20 = 384,276.30/x
  3. Step 3: Cross multiply
    916,373.40x = 1,375,216.20 × 384,276.30
  4. Step 4: Simplify right side
    916,373.40x = 528,462,993,036.06
  5. Step 5: Solve for x
    x = 528,462,993,036.06/916,373.40
  6. Step 6: Final answer
    x = 576,689.58

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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.