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Finding the Fourth Proportional to 587,534.84, 810,810.06 and 319,280.12

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Solution

The fourth proportional to 587,534.84, 810,810.06 and 319,280.12 is: 440,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,534.84 : 810,810.06 = 319,280.12 : x
  2. Step 2: Convert to fraction form
    587,534.84/810,810.06 = 319,280.12/x
  3. Step 3: Cross multiply
    587,534.84x = 810,810.06 × 319,280.12
  4. Step 4: Simplify right side
    587,534.84x = 258,875,533,254.01
  5. Step 5: Solve for x
    x = 258,875,533,254.01/587,534.84
  6. Step 6: Final answer
    x = 440,613.08

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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.