Home / 1,319,337.60-1,820,689.36-715,725.60

Finding the Fourth Proportional to 1,319,337.60, 1,820,689.36 and 715,725.60

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Solution

The fourth proportional to 1,319,337.60, 1,820,689.36 and 715,725.60 is: 987,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,337.60 : 1,820,689.36 = 715,725.60 : x
  2. Step 2: Convert to fraction form
    1,319,337.60/1,820,689.36 = 715,725.60/x
  3. Step 3: Cross multiply
    1,319,337.60x = 1,820,689.36 × 715,725.60
  4. Step 4: Simplify right side
    1,319,337.60x = 1,303,113,984,599.62
  5. Step 5: Solve for x
    x = 1,303,113,984,599.62/1,319,337.60
  6. Step 6: Final answer
    x = 987,703.21

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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.