Home / 459,918.20-634,686.18-258,714.20

Finding the Fourth Proportional to 459,918.20, 634,686.18 and 258,714.20

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Solution

The fourth proportional to 459,918.20, 634,686.18 and 258,714.20 is: 357,025.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,918.20 : 634,686.18 = 258,714.20 : x
  2. Step 2: Convert to fraction form
    459,918.20/634,686.18 = 258,714.20/x
  3. Step 3: Cross multiply
    459,918.20x = 634,686.18 × 258,714.20
  4. Step 4: Simplify right side
    459,918.20x = 164,202,327,309.76
  5. Step 5: Solve for x
    x = 164,202,327,309.76/459,918.20
  6. Step 6: Final answer
    x = 357,025.07

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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.