Home / 818,541.48-1,129,598.99-469,738.74

Finding the Fourth Proportional to 818,541.48, 1,129,598.99 and 469,738.74

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Solution

The fourth proportional to 818,541.48, 1,129,598.99 and 469,738.74 is: 648,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,541.48 : 1,129,598.99 = 469,738.74 : x
  2. Step 2: Convert to fraction form
    818,541.48/1,129,598.99 = 469,738.74/x
  3. Step 3: Cross multiply
    818,541.48x = 1,129,598.99 × 469,738.74
  4. Step 4: Simplify right side
    818,541.48x = 530,616,398,271.18
  5. Step 5: Solve for x
    x = 530,616,398,271.18/818,541.48
  6. Step 6: Final answer
    x = 648,246.20

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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.