Finding the Fourth Proportional to 778,569.84, 1,074,426.48 and 439,038.18
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Solution
The fourth proportional to 778,569.84, 1,074,426.48 and 439,038.18 is: 605,872.75
Step by Step Solution
- Step 1: Write the proportion equation
778,569.84 : 1,074,426.48 = 439,038.18 : x - Step 2: Convert to fraction form
778,569.84/1,074,426.48 = 439,038.18/x - Step 3: Cross multiply
778,569.84x = 1,074,426.48 × 439,038.18 - Step 4: Simplify right side
778,569.84x = 471,714,246,323.01 - Step 5: Solve for x
x = 471,714,246,323.01/778,569.84 - Step 6: Final answer
x = 605,872.75
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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.