Home / 688,637.70-1,032,956.55-578,412.90

Finding the Fourth Proportional to 688,637.70, 1,032,956.55 and 578,412.90

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Solution

The fourth proportional to 688,637.70, 1,032,956.55 and 578,412.90 is: 867,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,637.70 : 1,032,956.55 = 578,412.90 : x
  2. Step 2: Convert to fraction form
    688,637.70/1,032,956.55 = 578,412.90/x
  3. Step 3: Cross multiply
    688,637.70x = 1,032,956.55 × 578,412.90
  4. Step 4: Simplify right side
    688,637.70x = 597,475,393,659.50
  5. Step 5: Solve for x
    x = 597,475,393,659.50/688,637.70
  6. Step 6: Final answer
    x = 867,619.35

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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.