Home / 1,230,210.89-1,697,740.24-686,394.20

Finding the Fourth Proportional to 1,230,210.89, 1,697,740.24 and 686,394.20

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Solution

The fourth proportional to 1,230,210.89, 1,697,740.24 and 686,394.20 is: 947,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,210.89 : 1,697,740.24 = 686,394.20 : x
  2. Step 2: Convert to fraction form
    1,230,210.89/1,697,740.24 = 686,394.20/x
  3. Step 3: Cross multiply
    1,230,210.89x = 1,697,740.24 × 686,394.20
  4. Step 4: Simplify right side
    1,230,210.89x = 1,165,319,050,410.64
  5. Step 5: Solve for x
    x = 1,165,319,050,410.64/1,230,210.89
  6. Step 6: Final answer
    x = 947,251.45

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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.