Home / 708,356.59-977,554.97-402,427.41

Finding the Fourth Proportional to 708,356.59, 977,554.97 and 402,427.41

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Solution

The fourth proportional to 708,356.59, 977,554.97 and 402,427.41 is: 555,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,356.59 : 977,554.97 = 402,427.41 : x
  2. Step 2: Convert to fraction form
    708,356.59/977,554.97 = 402,427.41/x
  3. Step 3: Cross multiply
    708,356.59x = 977,554.97 × 402,427.41
  4. Step 4: Simplify right side
    708,356.59x = 393,394,907,809.82
  5. Step 5: Solve for x
    x = 393,394,907,809.82/708,356.59
  6. Step 6: Final answer
    x = 555,362.82

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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.