Finding the Fourth Proportional to 928,415.58, 1,281,267.63 and 520,497.42
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Solution
The fourth proportional to 928,415.58, 1,281,267.63 and 520,497.42 is: 718,316.79
Step by Step Solution
- Step 1: Write the proportion equation
928,415.58 : 1,281,267.63 = 520,497.42 : x - Step 2: Convert to fraction form
928,415.58/1,281,267.63 = 520,497.42/x - Step 3: Cross multiply
928,415.58x = 1,281,267.63 × 520,497.42 - Step 4: Simplify right side
928,415.58x = 666,896,495,744.52 - Step 5: Solve for x
x = 666,896,495,744.52/928,415.58 - Step 6: Final answer
x = 718,316.79
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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.