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Finding the Fourth Proportional to 848.16, 1,170.18 and 585.72

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Solution

The fourth proportional to 848.16, 1,170.18 and 585.72 is: 808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.16 : 1,170.18 = 585.72 : x
  2. Step 2: Convert to fraction form
    848.16/1,170.18 = 585.72/x
  3. Step 3: Cross multiply
    848.16x = 1,170.18 × 585.72
  4. Step 4: Simplify right side
    848.16x = 685,397.83
  5. Step 5: Solve for x
    x = 685,397.83/848.16
  6. Step 6: Final answer
    x = 808.10

Related Problems

Find fourth proportional to 424.08, 585.09 and 292.86
Half scale
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Double scale
Find fourth proportional to 849.16, 1,171.56 and 586.72
Similar ratio
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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.