Finding the Fourth Proportional to 689,720.24, 1,034,833.08 and 290,461.52
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Solution
The fourth proportional to 689,720.24, 1,034,833.08 and 290,461.52 is: 435,798.71
Step by Step Solution
- Step 1: Write the proportion equation
689,720.24 : 1,034,833.08 = 290,461.52 : x - Step 2: Convert to fraction form
689,720.24/1,034,833.08 = 290,461.52/x - Step 3: Cross multiply
689,720.24x = 1,034,833.08 × 290,461.52 - Step 4: Simplify right side
689,720.24x = 300,579,189,363.08 - Step 5: Solve for x
x = 300,579,189,363.08/689,720.24 - Step 6: Final answer
x = 435,798.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.