Finding the Fourth Proportional to 752,859.58, 1,038,947.98 and 413,349.70
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Solution
The fourth proportional to 752,859.58, 1,038,947.98 and 413,349.70 is: 570,423.55
Step by Step Solution
- Step 1: Write the proportion equation
752,859.58 : 1,038,947.98 = 413,349.70 : x - Step 2: Convert to fraction form
752,859.58/1,038,947.98 = 413,349.70/x - Step 3: Cross multiply
752,859.58x = 1,038,947.98 × 413,349.70 - Step 4: Simplify right side
752,859.58x = 429,448,835,848.61 - Step 5: Solve for x
x = 429,448,835,848.61/752,859.58 - Step 6: Final answer
x = 570,423.55
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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.