Home / 1,370,303.65-1,890,970.79-758,457.60

Finding the Fourth Proportional to 1,370,303.65, 1,890,970.79 and 758,457.60

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Solution

The fourth proportional to 1,370,303.65, 1,890,970.79 and 758,457.60 is: 1,046,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,303.65 : 1,890,970.79 = 758,457.60 : x
  2. Step 2: Convert to fraction form
    1,370,303.65/1,890,970.79 = 758,457.60/x
  3. Step 3: Cross multiply
    1,370,303.65x = 1,890,970.79 × 758,457.60
  4. Step 4: Simplify right side
    1,370,303.65x = 1,434,221,167,053.50
  5. Step 5: Solve for x
    x = 1,434,221,167,053.50/1,370,303.65
  6. Step 6: Final answer
    x = 1,046,644.78

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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.