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Finding the Fourth Proportional to 674,702.96, 931,088.48 and 384,314.48

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Solution

The fourth proportional to 674,702.96, 931,088.48 and 384,314.48 is: 530,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,702.96 : 931,088.48 = 384,314.48 : x
  2. Step 2: Convert to fraction form
    674,702.96/931,088.48 = 384,314.48/x
  3. Step 3: Cross multiply
    674,702.96x = 931,088.48 × 384,314.48
  4. Step 4: Simplify right side
    674,702.96x = 357,830,785,025.19
  5. Step 5: Solve for x
    x = 357,830,785,025.19/674,702.96
  6. Step 6: Final answer
    x = 530,353.07

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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.