Home / 3,128,465-4,317,281.70-1,697,681

Finding the Fourth Proportional to 3,128,465, 4,317,281.70 and 1,697,681

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Solution

The fourth proportional to 3,128,465, 4,317,281.70 and 1,697,681 is: 2,342,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,465 : 4,317,281.70 = 1,697,681 : x
  2. Step 2: Convert to fraction form
    3,128,465/4,317,281.70 = 1,697,681/x
  3. Step 3: Cross multiply
    3,128,465x = 4,317,281.70 × 1,697,681
  4. Step 4: Simplify right side
    3,128,465x = 7,329,367,113,737.70
  5. Step 5: Solve for x
    x = 7,329,367,113,737.70/3,128,465
  6. Step 6: Final answer
    x = 2,342,799.78

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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.