Home / 1,319,212.71-1,820,544.35-738,421.40

Finding the Fourth Proportional to 1,319,212.71, 1,820,544.35 and 738,421.40

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Solution

The fourth proportional to 1,319,212.71, 1,820,544.35 and 738,421.40 is: 1,019,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,212.71 : 1,820,544.35 = 738,421.40 : x
  2. Step 2: Convert to fraction form
    1,319,212.71/1,820,544.35 = 738,421.40/x
  3. Step 3: Cross multiply
    1,319,212.71x = 1,820,544.35 × 738,421.40
  4. Step 4: Simplify right side
    1,319,212.71x = 1,344,328,894,894.26
  5. Step 5: Solve for x
    x = 1,344,328,894,894.26/1,319,212.71
  6. Step 6: Final answer
    x = 1,019,038.77

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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.