Home / 987,024.80-1,477,912.80-630,106.40

Finding the Fourth Proportional to 987,024.80, 1,477,912.80 and 630,106.40

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Solution

The fourth proportional to 987,024.80, 1,477,912.80 and 630,106.40 is: 943,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,024.80 : 1,477,912.80 = 630,106.40 : x
  2. Step 2: Convert to fraction form
    987,024.80/1,477,912.80 = 630,106.40/x
  3. Step 3: Cross multiply
    987,024.80x = 1,477,912.80 × 630,106.40
  4. Step 4: Simplify right side
    987,024.80x = 931,242,313,921.92
  5. Step 5: Solve for x
    x = 931,242,313,921.92/987,024.80
  6. Step 6: Final answer
    x = 943,484.21

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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.