Home / 788,712.63-1,088,423.45-426,136.60

Finding the Fourth Proportional to 788,712.63, 1,088,423.45 and 426,136.60

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Solution

The fourth proportional to 788,712.63, 1,088,423.45 and 426,136.60 is: 588,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,712.63 : 1,088,423.45 = 426,136.60 : x
  2. Step 2: Convert to fraction form
    788,712.63/1,088,423.45 = 426,136.60/x
  3. Step 3: Cross multiply
    788,712.63x = 1,088,423.45 × 426,136.60
  4. Step 4: Simplify right side
    788,712.63x = 463,817,068,343.27
  5. Step 5: Solve for x
    x = 463,817,068,343.27/788,712.63
  6. Step 6: Final answer
    x = 588,068.52

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Double scale
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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.