Home / 1,187,000.20-1,780,457.10-476,835.40

Finding the Fourth Proportional to 1,187,000.20, 1,780,457.10 and 476,835.40

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Solution

The fourth proportional to 1,187,000.20, 1,780,457.10 and 476,835.40 is: 715,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,000.20 : 1,780,457.10 = 476,835.40 : x
  2. Step 2: Convert to fraction form
    1,187,000.20/1,780,457.10 = 476,835.40/x
  3. Step 3: Cross multiply
    1,187,000.20x = 1,780,457.10 × 476,835.40
  4. Step 4: Simplify right side
    1,187,000.20x = 848,984,973,461.34
  5. Step 5: Solve for x
    x = 848,984,973,461.34/1,187,000.20
  6. Step 6: Final answer
    x = 715,235.75

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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.