Home / 778,984.49-1,075,177.97-456,798.42

Finding the Fourth Proportional to 778,984.49, 1,075,177.97 and 456,798.42

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Solution

The fourth proportional to 778,984.49, 1,075,177.97 and 456,798.42 is: 630,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,984.49 : 1,075,177.97 = 456,798.42 : x
  2. Step 2: Convert to fraction form
    778,984.49/1,075,177.97 = 456,798.42/x
  3. Step 3: Cross multiply
    778,984.49x = 1,075,177.97 × 456,798.42
  4. Step 4: Simplify right side
    778,984.49x = 491,139,597,343.81
  5. Step 5: Solve for x
    x = 491,139,597,343.81/778,984.49
  6. Step 6: Final answer
    x = 630,487.00

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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.