Home / 712,921.60-1,069,612.80-476,531.20

Finding the Fourth Proportional to 712,921.60, 1,069,612.80 and 476,531.20

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Solution

The fourth proportional to 712,921.60, 1,069,612.80 and 476,531.20 is: 714,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,921.60 : 1,069,612.80 = 476,531.20 : x
  2. Step 2: Convert to fraction form
    712,921.60/1,069,612.80 = 476,531.20/x
  3. Step 3: Cross multiply
    712,921.60x = 1,069,612.80 × 476,531.20
  4. Step 4: Simplify right side
    712,921.60x = 509,703,871,119.36
  5. Step 5: Solve for x
    x = 509,703,871,119.36/712,921.60
  6. Step 6: Final answer
    x = 714,950.80

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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.