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Finding the Fourth Proportional to 657,802.40, 986,703.60 and 478,468.40

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Solution

The fourth proportional to 657,802.40, 986,703.60 and 478,468.40 is: 717,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,802.40 : 986,703.60 = 478,468.40 : x
  2. Step 2: Convert to fraction form
    657,802.40/986,703.60 = 478,468.40/x
  3. Step 3: Cross multiply
    657,802.40x = 986,703.60 × 478,468.40
  4. Step 4: Simplify right side
    657,802.40x = 472,106,492,766.24
  5. Step 5: Solve for x
    x = 472,106,492,766.24/657,802.40
  6. Step 6: Final answer
    x = 717,702.60

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.