Home / 1,316,276.80-1,974,415.20-369,678.40

Finding the Fourth Proportional to 1,316,276.80, 1,974,415.20 and 369,678.40

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Solution

The fourth proportional to 1,316,276.80, 1,974,415.20 and 369,678.40 is: 554,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,276.80 : 1,974,415.20 = 369,678.40 : x
  2. Step 2: Convert to fraction form
    1,316,276.80/1,974,415.20 = 369,678.40/x
  3. Step 3: Cross multiply
    1,316,276.80x = 1,974,415.20 × 369,678.40
  4. Step 4: Simplify right side
    1,316,276.80x = 729,898,652,071.68
  5. Step 5: Solve for x
    x = 729,898,652,071.68/1,316,276.80
  6. Step 6: Final answer
    x = 554,517.60

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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.