Finding the Fourth Proportional to 709,894.42, 979,646.88 and 387,603.52
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Solution
The fourth proportional to 709,894.42, 979,646.88 and 387,603.52 is: 534,888.81
Step by Step Solution
- Step 1: Write the proportion equation
709,894.42 : 979,646.88 = 387,603.52 : x - Step 2: Convert to fraction form
709,894.42/979,646.88 = 387,603.52/x - Step 3: Cross multiply
709,894.42x = 979,646.88 × 387,603.52 - Step 4: Simplify right side
709,894.42x = 379,714,579,045.02 - Step 5: Solve for x
x = 379,714,579,045.02/709,894.42 - Step 6: Final answer
x = 534,888.81
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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.