Home / 985,503.60-1,477,909.80-512,031.60

Finding the Fourth Proportional to 985,503.60, 1,477,909.80 and 512,031.60

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Solution

The fourth proportional to 985,503.60, 1,477,909.80 and 512,031.60 is: 767,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,503.60 : 1,477,909.80 = 512,031.60 : x
  2. Step 2: Convert to fraction form
    985,503.60/1,477,909.80 = 512,031.60/x
  3. Step 3: Cross multiply
    985,503.60x = 1,477,909.80 × 512,031.60
  4. Step 4: Simplify right side
    985,503.60x = 756,736,519,549.68
  5. Step 5: Solve for x
    x = 756,736,519,549.68/985,503.60
  6. Step 6: Final answer
    x = 767,867.84

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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.