Home / 948,328.38-1,308,813-621,916.04

Finding the Fourth Proportional to 948,328.38, 1,308,813 and 621,916.04

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Solution

The fourth proportional to 948,328.38, 1,308,813 and 621,916.04 is: 858,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,328.38 : 1,308,813 = 621,916.04 : x
  2. Step 2: Convert to fraction form
    948,328.38/1,308,813 = 621,916.04/x
  3. Step 3: Cross multiply
    948,328.38x = 1,308,813 × 621,916.04
  4. Step 4: Simplify right side
    948,328.38x = 813,971,798,060.52
  5. Step 5: Solve for x
    x = 813,971,798,060.52/948,328.38
  6. Step 6: Final answer
    x = 858,322.72

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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.