Home / 918,344.67-1,377,547.76-319,311.01

Finding the Fourth Proportional to 918,344.67, 1,377,547.76 and 319,311.01

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Solution

The fourth proportional to 918,344.67, 1,377,547.76 and 319,311.01 is: 478,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,344.67 : 1,377,547.76 = 319,311.01 : x
  2. Step 2: Convert to fraction form
    918,344.67/1,377,547.76 = 319,311.01/x
  3. Step 3: Cross multiply
    918,344.67x = 1,377,547.76 × 319,311.01
  4. Step 4: Simplify right side
    918,344.67x = 439,866,166,568.84
  5. Step 5: Solve for x
    x = 439,866,166,568.84/918,344.67
  6. Step 6: Final answer
    x = 478,977.21

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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.