Home / 1,152,420.30-1,728,630.45-310,970.70

Finding the Fourth Proportional to 1,152,420.30, 1,728,630.45 and 310,970.70

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Solution

The fourth proportional to 1,152,420.30, 1,728,630.45 and 310,970.70 is: 466,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,420.30 : 1,728,630.45 = 310,970.70 : x
  2. Step 2: Convert to fraction form
    1,152,420.30/1,728,630.45 = 310,970.70/x
  3. Step 3: Cross multiply
    1,152,420.30x = 1,728,630.45 × 310,970.70
  4. Step 4: Simplify right side
    1,152,420.30x = 537,553,421,077.82
  5. Step 5: Solve for x
    x = 537,553,421,077.82/1,152,420.30
  6. Step 6: Final answer
    x = 466,456.05

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Similar ratio
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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.