Home / 1,118,136.30-1,677,423.15-478,438.80

Finding the Fourth Proportional to 1,118,136.30, 1,677,423.15 and 478,438.80

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Solution

The fourth proportional to 1,118,136.30, 1,677,423.15 and 478,438.80 is: 717,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,136.30 : 1,677,423.15 = 478,438.80 : x
  2. Step 2: Convert to fraction form
    1,118,136.30/1,677,423.15 = 478,438.80/x
  3. Step 3: Cross multiply
    1,118,136.30x = 1,677,423.15 × 478,438.80
  4. Step 4: Simplify right side
    1,118,136.30x = 802,544,318,978.22
  5. Step 5: Solve for x
    x = 802,544,318,978.22/1,118,136.30
  6. Step 6: Final answer
    x = 717,751.78

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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.