Finding the Fourth Proportional to 1,423,575.84, 1,964,534.58 and 778,996.08
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Solution
The fourth proportional to 1,423,575.84, 1,964,534.58 and 778,996.08 is: 1,075,014.55
Step by Step Solution
- Step 1: Write the proportion equation
1,423,575.84 : 1,964,534.58 = 778,996.08 : x - Step 2: Convert to fraction form
1,423,575.84/1,964,534.58 = 778,996.08/x - Step 3: Cross multiply
1,423,575.84x = 1,964,534.58 × 778,996.08 - Step 4: Simplify right side
1,423,575.84x = 1,530,364,736,844.45 - Step 5: Solve for x
x = 1,530,364,736,844.45/1,423,575.84 - Step 6: Final answer
x = 1,075,014.55
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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.