Home / 1,369,730-1,890,234.76-766,117.84

Finding the Fourth Proportional to 1,369,730, 1,890,234.76 and 766,117.84

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Solution

The fourth proportional to 1,369,730, 1,890,234.76 and 766,117.84 is: 1,057,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,730 : 1,890,234.76 = 766,117.84 : x
  2. Step 2: Convert to fraction form
    1,369,730/1,890,234.76 = 766,117.84/x
  3. Step 3: Cross multiply
    1,369,730x = 1,890,234.76 × 766,117.84
  4. Step 4: Simplify right side
    1,369,730x = 1,448,142,571,424.12
  5. Step 5: Solve for x
    x = 1,448,142,571,424.12/1,369,730
  6. Step 6: Final answer
    x = 1,057,246.74

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Double scale
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1.5x scale

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.