Home / 1,020,870.25-1,531,188.65-272,974.57

Finding the Fourth Proportional to 1,020,870.25, 1,531,188.65 and 272,974.57

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Solution

The fourth proportional to 1,020,870.25, 1,531,188.65 and 272,974.57 is: 409,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,870.25 : 1,531,188.65 = 272,974.57 : x
  2. Step 2: Convert to fraction form
    1,020,870.25/1,531,188.65 = 272,974.57/x
  3. Step 3: Cross multiply
    1,020,870.25x = 1,531,188.65 × 272,974.57
  4. Step 4: Simplify right side
    1,020,870.25x = 417,975,563,322.63
  5. Step 5: Solve for x
    x = 417,975,563,322.63/1,020,870.25
  6. Step 6: Final answer
    x = 409,430.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.