Home / 745,935.58-1,117,962.51-318,966.66

Finding the Fourth Proportional to 745,935.58, 1,117,962.51 and 318,966.66

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Solution

The fourth proportional to 745,935.58, 1,117,962.51 and 318,966.66 is: 478,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,935.58 : 1,117,962.51 = 318,966.66 : x
  2. Step 2: Convert to fraction form
    745,935.58/1,117,962.51 = 318,966.66/x
  3. Step 3: Cross multiply
    745,935.58x = 1,117,962.51 × 318,966.66
  4. Step 4: Simplify right side
    745,935.58x = 356,592,766,623.79
  5. Step 5: Solve for x
    x = 356,592,766,623.79/745,935.58
  6. Step 6: Final answer
    x = 478,047.67

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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.