Home / 458,501.40-686,196.90-402,514.20

Finding the Fourth Proportional to 458,501.40, 686,196.90 and 402,514.20

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Solution

The fourth proportional to 458,501.40, 686,196.90 and 402,514.20 is: 602,406.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,501.40 : 686,196.90 = 402,514.20 : x
  2. Step 2: Convert to fraction form
    458,501.40/686,196.90 = 402,514.20/x
  3. Step 3: Cross multiply
    458,501.40x = 686,196.90 × 402,514.20
  4. Step 4: Simplify right side
    458,501.40x = 276,203,996,245.98
  5. Step 5: Solve for x
    x = 276,203,996,245.98/458,501.40
  6. Step 6: Final answer
    x = 602,406.00

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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.