Finding the Fourth Proportional to 877,470.84, 1,211,330.70 and 555,337.08
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Solution
The fourth proportional to 877,470.84, 1,211,330.70 and 555,337.08 is: 766,631.58
Step by Step Solution
- Step 1: Write the proportion equation
877,470.84 : 1,211,330.70 = 555,337.08 : x - Step 2: Convert to fraction form
877,470.84/1,211,330.70 = 555,337.08/x - Step 3: Cross multiply
877,470.84x = 1,211,330.70 × 555,337.08 - Step 4: Simplify right side
877,470.84x = 672,696,853,852.36 - Step 5: Solve for x
x = 672,696,853,852.36/877,470.84 - Step 6: Final answer
x = 766,631.58
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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.