Home / 688,571.40-949,962.42-507,711.36

Finding the Fourth Proportional to 688,571.40, 949,962.42 and 507,711.36

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Solution

The fourth proportional to 688,571.40, 949,962.42 and 507,711.36 is: 700,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,571.40 : 949,962.42 = 507,711.36 : x
  2. Step 2: Convert to fraction form
    688,571.40/949,962.42 = 507,711.36/x
  3. Step 3: Cross multiply
    688,571.40x = 949,962.42 × 507,711.36
  4. Step 4: Simplify right side
    688,571.40x = 482,306,712,207.09
  5. Step 5: Solve for x
    x = 482,306,712,207.09/688,571.40
  6. Step 6: Final answer
    x = 700,445.46

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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.