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Finding the Fourth Proportional to 559,000.80, 838,501.20 and 402,703.20

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Solution

The fourth proportional to 559,000.80, 838,501.20 and 402,703.20 is: 604,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,000.80 : 838,501.20 = 402,703.20 : x
  2. Step 2: Convert to fraction form
    559,000.80/838,501.20 = 402,703.20/x
  3. Step 3: Cross multiply
    559,000.80x = 838,501.20 × 402,703.20
  4. Step 4: Simplify right side
    559,000.80x = 337,667,116,443.84
  5. Step 5: Solve for x
    x = 337,667,116,443.84/559,000.80
  6. Step 6: Final answer
    x = 604,054.80

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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.