Home / 680,946.48-1,018,931.40-400,595.76

Finding the Fourth Proportional to 680,946.48, 1,018,931.40 and 400,595.76

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Solution

The fourth proportional to 680,946.48, 1,018,931.40 and 400,595.76 is: 599,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,946.48 : 1,018,931.40 = 400,595.76 : x
  2. Step 2: Convert to fraction form
    680,946.48/1,018,931.40 = 400,595.76/x
  3. Step 3: Cross multiply
    680,946.48x = 1,018,931.40 × 400,595.76
  4. Step 4: Simplify right side
    680,946.48x = 408,179,598,570.86
  5. Step 5: Solve for x
    x = 408,179,598,570.86/680,946.48
  6. Step 6: Final answer
    x = 599,429.78

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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.