Home / 1,316,341.78-1,974,586.53-369,638.70

Finding the Fourth Proportional to 1,316,341.78, 1,974,586.53 and 369,638.70

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Solution

The fourth proportional to 1,316,341.78, 1,974,586.53 and 369,638.70 is: 554,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,341.78 : 1,974,586.53 = 369,638.70 : x
  2. Step 2: Convert to fraction form
    1,316,341.78/1,974,586.53 = 369,638.70/x
  3. Step 3: Cross multiply
    1,316,341.78x = 1,974,586.53 × 369,638.70
  4. Step 4: Simplify right side
    1,316,341.78x = 729,883,597,986.71
  5. Step 5: Solve for x
    x = 729,883,597,986.71/1,316,341.78
  6. Step 6: Final answer
    x = 554,478.79

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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.