Home / 688,539.20-1,032,808.80-578,314.40

Finding the Fourth Proportional to 688,539.20, 1,032,808.80 and 578,314.40

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Solution

The fourth proportional to 688,539.20, 1,032,808.80 and 578,314.40 is: 867,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,539.20 : 1,032,808.80 = 578,314.40 : x
  2. Step 2: Convert to fraction form
    688,539.20/1,032,808.80 = 578,314.40/x
  3. Step 3: Cross multiply
    688,539.20x = 1,032,808.80 × 578,314.40
  4. Step 4: Simplify right side
    688,539.20x = 597,288,201,486.72
  5. Step 5: Solve for x
    x = 597,288,201,486.72/688,539.20
  6. Step 6: Final answer
    x = 867,471.60

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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.