Home / 708,529.80-1,064,433.10-487,345.80

Finding the Fourth Proportional to 708,529.80, 1,064,433.10 and 487,345.80

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Solution

The fourth proportional to 708,529.80, 1,064,433.10 and 487,345.80 is: 732,145.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,529.80 : 1,064,433.10 = 487,345.80 : x
  2. Step 2: Convert to fraction form
    708,529.80/1,064,433.10 = 487,345.80/x
  3. Step 3: Cross multiply
    708,529.80x = 1,064,433.10 × 487,345.80
  4. Step 4: Simplify right side
    708,529.80x = 518,747,000,665.98
  5. Step 5: Solve for x
    x = 518,747,000,665.98/708,529.80
  6. Step 6: Final answer
    x = 732,145.64

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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.