Home / 1,152,425.16-1,590,346.98-643,116.60

Finding the Fourth Proportional to 1,152,425.16, 1,590,346.98 and 643,116.60

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Solution

The fourth proportional to 1,152,425.16, 1,590,346.98 and 643,116.60 is: 887,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,425.16 : 1,590,346.98 = 643,116.60 : x
  2. Step 2: Convert to fraction form
    1,152,425.16/1,590,346.98 = 643,116.60/x
  3. Step 3: Cross multiply
    1,152,425.16x = 1,590,346.98 × 643,116.60
  4. Step 4: Simplify right side
    1,152,425.16x = 1,022,778,542,597.87
  5. Step 5: Solve for x
    x = 1,022,778,542,597.87/1,152,425.16
  6. Step 6: Final answer
    x = 887,501.05

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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.