Home / 1,429,238.16-1,971,032.16-971,038.56

Finding the Fourth Proportional to 1,429,238.16, 1,971,032.16 and 971,038.56

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Solution

The fourth proportional to 1,429,238.16, 1,971,032.16 and 971,038.56 is: 1,339,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,238.16 : 1,971,032.16 = 971,038.56 : x
  2. Step 2: Convert to fraction form
    1,429,238.16/1,971,032.16 = 971,038.56/x
  3. Step 3: Cross multiply
    1,429,238.16x = 1,971,032.16 × 971,038.56
  4. Step 4: Simplify right side
    1,429,238.16x = 1,913,948,230,360.09
  5. Step 5: Solve for x
    x = 1,913,948,230,360.09/1,429,238.16
  6. Step 6: Final answer
    x = 1,339,138.77

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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.