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Finding the Fourth Proportional to 478,566.51, 660,376.67 and 282,302.40

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Solution

The fourth proportional to 478,566.51, 660,376.67 and 282,302.40 is: 389,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,566.51 : 660,376.67 = 282,302.40 : x
  2. Step 2: Convert to fraction form
    478,566.51/660,376.67 = 282,302.40/x
  3. Step 3: Cross multiply
    478,566.51x = 660,376.67 × 282,302.40
  4. Step 4: Simplify right side
    478,566.51x = 186,425,917,433.50
  5. Step 5: Solve for x
    x = 186,425,917,433.50/478,566.51
  6. Step 6: Final answer
    x = 389,550.70

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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.