Finding the Fourth Proportional to 621,315.49, 930,478.47 and 354,266.41
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Solution
The fourth proportional to 621,315.49, 930,478.47 and 354,266.41 is: 530,547.32
Step by Step Solution
- Step 1: Write the proportion equation
621,315.49 : 930,478.47 = 354,266.41 : x - Step 2: Convert to fraction form
621,315.49/930,478.47 = 354,266.41/x - Step 3: Cross multiply
621,315.49x = 930,478.47 × 354,266.41 - Step 4: Simplify right side
621,315.49x = 329,637,267,149.19 - Step 5: Solve for x
x = 329,637,267,149.19/621,315.49 - Step 6: Final answer
x = 530,547.32
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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.