Home / 688,572.40-949,963.80-507,712.36

Finding the Fourth Proportional to 688,572.40, 949,963.80 and 507,712.36

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Solution

The fourth proportional to 688,572.40, 949,963.80 and 507,712.36 is: 700,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,572.40 : 949,963.80 = 507,712.36 : x
  2. Step 2: Convert to fraction form
    688,572.40/949,963.80 = 507,712.36/x
  3. Step 3: Cross multiply
    688,572.40x = 949,963.80 × 507,712.36
  4. Step 4: Simplify right side
    688,572.40x = 482,308,362,812.57
  5. Step 5: Solve for x
    x = 482,308,362,812.57/688,572.40
  6. Step 6: Final answer
    x = 700,446.84

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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.