Finding the Fourth Proportional to 615,187.70, 922,781.55 and 260,083.70
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Solution
The fourth proportional to 615,187.70, 922,781.55 and 260,083.70 is: 390,125.55
Step by Step Solution
- Step 1: Write the proportion equation
615,187.70 : 922,781.55 = 260,083.70 : x - Step 2: Convert to fraction form
615,187.70/922,781.55 = 260,083.70/x - Step 3: Cross multiply
615,187.70x = 922,781.55 × 260,083.70 - Step 4: Simplify right side
615,187.70x = 240,000,439,815.74 - Step 5: Solve for x
x = 240,000,439,815.74/615,187.70 - Step 6: Final answer
x = 390,125.55
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1.5x scale
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.