Home / 1,392,038.16-1,921,282.07-907,762.55

Finding the Fourth Proportional to 1,392,038.16, 1,921,282.07 and 907,762.55

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Solution

The fourth proportional to 1,392,038.16, 1,921,282.07 and 907,762.55 is: 1,252,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,038.16 : 1,921,282.07 = 907,762.55 : x
  2. Step 2: Convert to fraction form
    1,392,038.16/1,921,282.07 = 907,762.55/x
  3. Step 3: Cross multiply
    1,392,038.16x = 1,921,282.07 × 907,762.55
  4. Step 4: Simplify right side
    1,392,038.16x = 1,744,067,911,132.48
  5. Step 5: Solve for x
    x = 1,744,067,911,132.48/1,392,038.16
  6. Step 6: Final answer
    x = 1,252,888.00

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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.