Finding the Fourth Proportional to 1,316,764.80, 1,973,964.60 and 518,590.80
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Solution
The fourth proportional to 1,316,764.80, 1,973,964.60 and 518,590.80 is: 777,420.45
Step by Step Solution
- Step 1: Write the proportion equation
1,316,764.80 : 1,973,964.60 = 518,590.80 : x - Step 2: Convert to fraction form
1,316,764.80/1,973,964.60 = 518,590.80/x - Step 3: Cross multiply
1,316,764.80x = 1,973,964.60 × 518,590.80 - Step 4: Simplify right side
1,316,764.80x = 1,023,679,881,085.68 - Step 5: Solve for x
x = 1,023,679,881,085.68/1,316,764.80 - Step 6: Final answer
x = 777,420.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.