Home / 876,415.40-1,314,666.30-456,511.40

Finding the Fourth Proportional to 876,415.40, 1,314,666.30 and 456,511.40

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Solution

The fourth proportional to 876,415.40, 1,314,666.30 and 456,511.40 is: 684,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,415.40 : 1,314,666.30 = 456,511.40 : x
  2. Step 2: Convert to fraction form
    876,415.40/1,314,666.30 = 456,511.40/x
  3. Step 3: Cross multiply
    876,415.40x = 1,314,666.30 × 456,511.40
  4. Step 4: Simplify right side
    876,415.40x = 600,160,153,145.82
  5. Step 5: Solve for x
    x = 600,160,153,145.82/876,415.40
  6. Step 6: Final answer
    x = 684,789.60

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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.