Home / 1,129,498.36-1,558,848.18-645,996.40

Finding the Fourth Proportional to 1,129,498.36, 1,558,848.18 and 645,996.40

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Solution

The fourth proportional to 1,129,498.36, 1,558,848.18 and 645,996.40 is: 891,555.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,498.36 : 1,558,848.18 = 645,996.40 : x
  2. Step 2: Convert to fraction form
    1,129,498.36/1,558,848.18 = 645,996.40/x
  3. Step 3: Cross multiply
    1,129,498.36x = 1,558,848.18 × 645,996.40
  4. Step 4: Simplify right side
    1,129,498.36x = 1,007,010,312,426.55
  5. Step 5: Solve for x
    x = 1,007,010,312,426.55/1,129,498.36
  6. Step 6: Final answer
    x = 891,555.36

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Double scale
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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.