Home / 385,631.40-578,058.30-175,420.20

Finding the Fourth Proportional to 385,631.40, 578,058.30 and 175,420.20

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Solution

The fourth proportional to 385,631.40, 578,058.30 and 175,420.20 is: 262,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,631.40 : 578,058.30 = 175,420.20 : x
  2. Step 2: Convert to fraction form
    385,631.40/578,058.30 = 175,420.20/x
  3. Step 3: Cross multiply
    385,631.40x = 578,058.30 × 175,420.20
  4. Step 4: Simplify right side
    385,631.40x = 101,403,102,597.66
  5. Step 5: Solve for x
    x = 101,403,102,597.66/385,631.40
  6. Step 6: Final answer
    x = 262,953.44

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1.5x scale

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.