Home / 917,569.61-1,376,368.25-318,549.80

Finding the Fourth Proportional to 917,569.61, 1,376,368.25 and 318,549.80

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Solution

The fourth proportional to 917,569.61, 1,376,368.25 and 318,549.80 is: 477,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,569.61 : 1,376,368.25 = 318,549.80 : x
  2. Step 2: Convert to fraction form
    917,569.61/1,376,368.25 = 318,549.80/x
  3. Step 3: Cross multiply
    917,569.61x = 1,376,368.25 × 318,549.80
  4. Step 4: Simplify right side
    917,569.61x = 438,441,823,882.01
  5. Step 5: Solve for x
    x = 438,441,823,882.01/917,569.61
  6. Step 6: Final answer
    x = 477,829.50

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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.