Finding the Fourth Proportional to 708,909.84, 978,292.08 and 386,614.08
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Solution
The fourth proportional to 708,909.84, 978,292.08 and 386,614.08 is: 533,525.52
Step by Step Solution
- Step 1: Write the proportion equation
708,909.84 : 978,292.08 = 386,614.08 : x - Step 2: Convert to fraction form
708,909.84/978,292.08 = 386,614.08/x - Step 3: Cross multiply
708,909.84x = 978,292.08 × 386,614.08 - Step 4: Simplify right side
708,909.84x = 378,221,492,480.49 - Step 5: Solve for x
x = 378,221,492,480.49/708,909.84 - Step 6: Final answer
x = 533,525.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.