Home / 1,531,038.78-2,112,802.65-958,394.70

Finding the Fourth Proportional to 1,531,038.78, 2,112,802.65 and 958,394.70

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Solution

The fourth proportional to 1,531,038.78, 2,112,802.65 and 958,394.70 is: 1,322,565.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,038.78 : 2,112,802.65 = 958,394.70 : x
  2. Step 2: Convert to fraction form
    1,531,038.78/2,112,802.65 = 958,394.70/x
  3. Step 3: Cross multiply
    1,531,038.78x = 2,112,802.65 × 958,394.70
  4. Step 4: Simplify right side
    1,531,038.78x = 2,024,898,861,905.95
  5. Step 5: Solve for x
    x = 2,024,898,861,905.95/1,531,038.78
  6. Step 6: Final answer
    x = 1,322,565.36

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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.