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Finding the Fourth Proportional to 559,973.70, 839,960.55 and 507,485.70

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Solution

The fourth proportional to 559,973.70, 839,960.55 and 507,485.70 is: 761,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,973.70 : 839,960.55 = 507,485.70 : x
  2. Step 2: Convert to fraction form
    559,973.70/839,960.55 = 507,485.70/x
  3. Step 3: Cross multiply
    559,973.70x = 839,960.55 × 507,485.70
  4. Step 4: Simplify right side
    559,973.70x = 426,267,967,689.14
  5. Step 5: Solve for x
    x = 426,267,967,689.14/559,973.70
  6. Step 6: Final answer
    x = 761,228.55

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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.