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Finding the Fourth Proportional to 710,965.86, 981,144.55 and 424,510.98

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Solution

The fourth proportional to 710,965.86, 981,144.55 and 424,510.98 is: 585,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,965.86 : 981,144.55 = 424,510.98 : x
  2. Step 2: Convert to fraction form
    710,965.86/981,144.55 = 424,510.98/x
  3. Step 3: Cross multiply
    710,965.86x = 981,144.55 × 424,510.98
  4. Step 4: Simplify right side
    710,965.86x = 416,506,628,905.63
  5. Step 5: Solve for x
    x = 416,506,628,905.63/710,965.86
  6. Step 6: Final answer
    x = 585,832.11

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Double scale
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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.