Home / 551,923.50-761,655.16-313,459.50

Finding the Fourth Proportional to 551,923.50, 761,655.16 and 313,459.50

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Solution

The fourth proportional to 551,923.50, 761,655.16 and 313,459.50 is: 432,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,923.50 : 761,655.16 = 313,459.50 : x
  2. Step 2: Convert to fraction form
    551,923.50/761,655.16 = 313,459.50/x
  3. Step 3: Cross multiply
    551,923.50x = 761,655.16 × 313,459.50
  4. Step 4: Simplify right side
    551,923.50x = 238,748,045,626.02
  5. Step 5: Solve for x
    x = 238,748,045,626.02/551,923.50
  6. Step 6: Final answer
    x = 432,574.52

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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.