Home / 1,213,658.40-1,820,050.20-614,420.40

Finding the Fourth Proportional to 1,213,658.40, 1,820,050.20 and 614,420.40

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Solution

The fourth proportional to 1,213,658.40, 1,820,050.20 and 614,420.40 is: 921,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,658.40 : 1,820,050.20 = 614,420.40 : x
  2. Step 2: Convert to fraction form
    1,213,658.40/1,820,050.20 = 614,420.40/x
  3. Step 3: Cross multiply
    1,213,658.40x = 1,820,050.20 × 614,420.40
  4. Step 4: Simplify right side
    1,213,658.40x = 1,118,275,971,904.08
  5. Step 5: Solve for x
    x = 1,118,275,971,904.08/1,213,658.40
  6. Step 6: Final answer
    x = 921,409.16

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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.