Finding the Fourth Proportional to 1,423,573.84, 1,964,531.82 and 778,994.08
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Solution
The fourth proportional to 1,423,573.84, 1,964,531.82 and 778,994.08 is: 1,075,011.79
Step by Step Solution
- Step 1: Write the proportion equation
1,423,573.84 : 1,964,531.82 = 778,994.08 : x - Step 2: Convert to fraction form
1,423,573.84/1,964,531.82 = 778,994.08/x - Step 3: Cross multiply
1,423,573.84x = 1,964,531.82 × 778,994.08 - Step 4: Simplify right side
1,423,573.84x = 1,530,358,657,751.63 - Step 5: Solve for x
x = 1,530,358,657,751.63/1,423,573.84 - Step 6: Final answer
x = 1,075,011.79
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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.