Finding the Fourth Proportional to 872,115.44, 1,203,848.10 and 509,657.06
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Solution
The fourth proportional to 872,115.44, 1,203,848.10 and 509,657.06 is: 703,518.89
Step by Step Solution
- Step 1: Write the proportion equation
872,115.44 : 1,203,848.10 = 509,657.06 : x - Step 2: Convert to fraction form
872,115.44/1,203,848.10 = 509,657.06/x - Step 3: Cross multiply
872,115.44x = 1,203,848.10 × 509,657.06 - Step 4: Simplify right side
872,115.44x = 613,549,683,332.59 - Step 5: Solve for x
x = 613,549,683,332.59/872,115.44 - Step 6: Final answer
x = 703,518.89
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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.