Home / 1,430,582.50-1,975,950.38-1,069,607.21

Finding the Fourth Proportional to 1,430,582.50, 1,975,950.38 and 1,069,607.21

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Solution

The fourth proportional to 1,430,582.50, 1,975,950.38 and 1,069,607.21 is: 1,477,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,582.50 : 1,975,950.38 = 1,069,607.21 : x
  2. Step 2: Convert to fraction form
    1,430,582.50/1,975,950.38 = 1,069,607.21/x
  3. Step 3: Cross multiply
    1,430,582.50x = 1,975,950.38 × 1,069,607.21
  4. Step 4: Simplify right side
    1,430,582.50x = 2,113,490,770,942.69
  5. Step 5: Solve for x
    x = 2,113,490,770,942.69/1,430,582.50
  6. Step 6: Final answer
    x = 1,477,363.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.