Home / 1,353,036.64-1,866,726.90-771,842.20

Finding the Fourth Proportional to 1,353,036.64, 1,866,726.90 and 771,842.20

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Solution

The fourth proportional to 1,353,036.64, 1,866,726.90 and 771,842.20 is: 1,064,877.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,036.64 : 1,866,726.90 = 771,842.20 : x
  2. Step 2: Convert to fraction form
    1,353,036.64/1,866,726.90 = 771,842.20/x
  3. Step 3: Cross multiply
    1,353,036.64x = 1,866,726.90 × 771,842.20
  4. Step 4: Simplify right side
    1,353,036.64x = 1,440,818,597,295.18
  5. Step 5: Solve for x
    x = 1,440,818,597,295.18/1,353,036.64
  6. Step 6: Final answer
    x = 1,064,877.74

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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.