Home / 1,210,406.40-1,815,415.20-368,762.40

Finding the Fourth Proportional to 1,210,406.40, 1,815,415.20 and 368,762.40

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Solution

The fourth proportional to 1,210,406.40, 1,815,415.20 and 368,762.40 is: 553,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,406.40 : 1,815,415.20 = 368,762.40 : x
  2. Step 2: Convert to fraction form
    1,210,406.40/1,815,415.20 = 368,762.40/x
  3. Step 3: Cross multiply
    1,210,406.40x = 1,815,415.20 × 368,762.40
  4. Step 4: Simplify right side
    1,210,406.40x = 669,456,866,148.48
  5. Step 5: Solve for x
    x = 669,456,866,148.48/1,210,406.40
  6. Step 6: Final answer
    x = 553,084.37

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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.