Home / 739,599,299.65-1,020,679,116.78-409,574,438.65

Finding the Fourth Proportional to 739,599,299.65, 1,020,679,116.78 and 409,574,438.65

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Solution

The fourth proportional to 739,599,299.65, 1,020,679,116.78 and 409,574,438.65 is: 565,230,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,599,299.65 : 1,020,679,116.78 = 409,574,438.65 : x
  2. Step 2: Convert to fraction form
    739,599,299.65/1,020,679,116.78 = 409,574,438.65/x
  3. Step 3: Cross multiply
    739,599,299.65x = 1,020,679,116.78 × 409,574,438.65
  4. Step 4: Simplify right side
    739,599,299.65x = 418,044,076,296,946,240
  5. Step 5: Solve for x
    x = 418,044,076,296,946,240/739,599,299.65
  6. Step 6: Final answer
    x = 565,230,492.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.