Home / 1,315,638.29-1,815,594.34-771,783.34

Finding the Fourth Proportional to 1,315,638.29, 1,815,594.34 and 771,783.34

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Solution

The fourth proportional to 1,315,638.29, 1,815,594.34 and 771,783.34 is: 1,065,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,638.29 : 1,815,594.34 = 771,783.34 : x
  2. Step 2: Convert to fraction form
    1,315,638.29/1,815,594.34 = 771,783.34/x
  3. Step 3: Cross multiply
    1,315,638.29x = 1,815,594.34 × 771,783.34
  4. Step 4: Simplify right side
    1,315,638.29x = 1,401,245,463,810.30
  5. Step 5: Solve for x
    x = 1,401,245,463,810.30/1,315,638.29
  6. Step 6: Final answer
    x = 1,065,068.93

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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.