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Finding the Fourth Proportional to 567,510.68, 783,170.80 and 312,870.98

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Solution

The fourth proportional to 567,510.68, 783,170.80 and 312,870.98 is: 431,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,510.68 : 783,170.80 = 312,870.98 : x
  2. Step 2: Convert to fraction form
    567,510.68/783,170.80 = 312,870.98/x
  3. Step 3: Cross multiply
    567,510.68x = 783,170.80 × 312,870.98
  4. Step 4: Simplify right side
    567,510.68x = 245,031,415,703.38
  5. Step 5: Solve for x
    x = 245,031,415,703.38/567,510.68
  6. Step 6: Final answer
    x = 431,765.29

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1.5x scale

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.