Home / 1,390,331.37-2,085,829.98-580,265.34

Finding the Fourth Proportional to 1,390,331.37, 2,085,829.98 and 580,265.34

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Solution

The fourth proportional to 1,390,331.37, 2,085,829.98 and 580,265.34 is: 870,536.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,331.37 : 2,085,829.98 = 580,265.34 : x
  2. Step 2: Convert to fraction form
    1,390,331.37/2,085,829.98 = 580,265.34/x
  3. Step 3: Cross multiply
    1,390,331.37x = 2,085,829.98 × 580,265.34
  4. Step 4: Simplify right side
    1,390,331.37x = 1,210,334,842,526.89
  5. Step 5: Solve for x
    x = 1,210,334,842,526.89/1,390,331.37
  6. Step 6: Final answer
    x = 870,536.96

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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.