Home / 1,115,030.16-1,538,692.32-631,585.58

Finding the Fourth Proportional to 1,115,030.16, 1,538,692.32 and 631,585.58

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Solution

The fourth proportional to 1,115,030.16, 1,538,692.32 and 631,585.58 is: 871,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,030.16 : 1,538,692.32 = 631,585.58 : x
  2. Step 2: Convert to fraction form
    1,115,030.16/1,538,692.32 = 631,585.58/x
  3. Step 3: Cross multiply
    1,115,030.16x = 1,538,692.32 × 631,585.58
  4. Step 4: Simplify right side
    1,115,030.16x = 971,815,881,368.75
  5. Step 5: Solve for x
    x = 971,815,881,368.75/1,115,030.16
  6. Step 6: Final answer
    x = 871,560.17

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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.