Home / 771,312.51-1,157,715.08-372,234.21

Finding the Fourth Proportional to 771,312.51, 1,157,715.08 and 372,234.21

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Solution

The fourth proportional to 771,312.51, 1,157,715.08 and 372,234.21 is: 558,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,312.51 : 1,157,715.08 = 372,234.21 : x
  2. Step 2: Convert to fraction form
    771,312.51/1,157,715.08 = 372,234.21/x
  3. Step 3: Cross multiply
    771,312.51x = 1,157,715.08 × 372,234.21
  4. Step 4: Simplify right side
    771,312.51x = 430,941,156,347.72
  5. Step 5: Solve for x
    x = 430,941,156,347.72/771,312.51
  6. Step 6: Final answer
    x = 558,711.48

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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.