Home / 819,271.40-1,130,600.10-456,718.28

Finding the Fourth Proportional to 819,271.40, 1,130,600.10 and 456,718.28

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Solution

The fourth proportional to 819,271.40, 1,130,600.10 and 456,718.28 is: 630,274.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,271.40 : 1,130,600.10 = 456,718.28 : x
  2. Step 2: Convert to fraction form
    819,271.40/1,130,600.10 = 456,718.28/x
  3. Step 3: Cross multiply
    819,271.40x = 1,130,600.10 × 456,718.28
  4. Step 4: Simplify right side
    819,271.40x = 516,365,733,039.83
  5. Step 5: Solve for x
    x = 516,365,733,039.83/819,271.40
  6. Step 6: Final answer
    x = 630,274.33

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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.