Home / 1,415,790.48-1,953,780.82-771,210.66

Finding the Fourth Proportional to 1,415,790.48, 1,953,780.82 and 771,210.66

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Solution

The fourth proportional to 1,415,790.48, 1,953,780.82 and 771,210.66 is: 1,064,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,790.48 : 1,953,780.82 = 771,210.66 : x
  2. Step 2: Convert to fraction form
    1,415,790.48/1,953,780.82 = 771,210.66/x
  3. Step 3: Cross multiply
    1,415,790.48x = 1,953,780.82 × 771,210.66
  4. Step 4: Simplify right side
    1,415,790.48x = 1,506,776,595,687.54
  5. Step 5: Solve for x
    x = 1,506,776,595,687.54/1,415,790.48
  6. Step 6: Final answer
    x = 1,064,265.24

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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.