Home / 513,837.30-771,638.02-315,323.30

Finding the Fourth Proportional to 513,837.30, 771,638.02 and 315,323.30

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Solution

The fourth proportional to 513,837.30, 771,638.02 and 315,323.30 is: 473,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,837.30 : 771,638.02 = 315,323.30 : x
  2. Step 2: Convert to fraction form
    513,837.30/771,638.02 = 315,323.30/x
  3. Step 3: Cross multiply
    513,837.30x = 771,638.02 × 315,323.30
  4. Step 4: Simplify right side
    513,837.30x = 243,315,446,871.87
  5. Step 5: Solve for x
    x = 243,315,446,871.87/513,837.30
  6. Step 6: Final answer
    x = 473,526.24

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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.